Home / 91,291.33-125,969.51-51,000.08

Finding the Fourth Proportional to 91,291.33, 125,969.51 and 51,000.08

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Solution

The fourth proportional to 91,291.33, 125,969.51 and 51,000.08 is: 70,373.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,291.33 : 125,969.51 = 51,000.08 : x
  2. Step 2: Convert to fraction form
    91,291.33/125,969.51 = 51,000.08/x
  3. Step 3: Cross multiply
    91,291.33x = 125,969.51 × 51,000.08
  4. Step 4: Simplify right side
    91,291.33x = 6,424,454,832.56
  5. Step 5: Solve for x
    x = 6,424,454,832.56/91,291.33
  6. Step 6: Final answer
    x = 70,373.11

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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.