Home / 91,335,588.73-125,921,180.49-72,559,469.89

Finding the Fourth Proportional to 91,335,588.73, 125,921,180.49 and 72,559,469.89

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Solution

The fourth proportional to 91,335,588.73, 125,921,180.49 and 72,559,469.89 is: 100,035,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,335,588.73 : 125,921,180.49 = 72,559,469.89 : x
  2. Step 2: Convert to fraction form
    91,335,588.73/125,921,180.49 = 72,559,469.89/x
  3. Step 3: Cross multiply
    91,335,588.73x = 125,921,180.49 × 72,559,469.89
  4. Step 4: Simplify right side
    91,335,588.73x = 9,136,774,104,570,498
  5. Step 5: Solve for x
    x = 9,136,774,104,570,498/91,335,588.73
  6. Step 6: Final answer
    x = 100,035,202.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.