Home / 91,057.52-136,503.07-31,860.89

Finding the Fourth Proportional to 91,057.52, 136,503.07 and 31,860.89

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Solution

The fourth proportional to 91,057.52, 136,503.07 and 31,860.89 is: 47,762.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,057.52 : 136,503.07 = 31,860.89 : x
  2. Step 2: Convert to fraction form
    91,057.52/136,503.07 = 31,860.89/x
  3. Step 3: Cross multiply
    91,057.52x = 136,503.07 × 31,860.89
  4. Step 4: Simplify right side
    91,057.52x = 4,349,109,994.70
  5. Step 5: Solve for x
    x = 4,349,109,994.70/91,057.52
  6. Step 6: Final answer
    x = 47,762.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.