Home / 62,988.67-86,918.05-38,785.75

Finding the Fourth Proportional to 62,988.67, 86,918.05 and 38,785.75

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Solution

The fourth proportional to 62,988.67, 86,918.05 and 38,785.75 is: 53,520.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,988.67 : 86,918.05 = 38,785.75 : x
  2. Step 2: Convert to fraction form
    62,988.67/86,918.05 = 38,785.75/x
  3. Step 3: Cross multiply
    62,988.67x = 86,918.05 × 38,785.75
  4. Step 4: Simplify right side
    62,988.67x = 3,371,181,757.79
  5. Step 5: Solve for x
    x = 3,371,181,757.79/62,988.67
  6. Step 6: Final answer
    x = 53,520.45

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1.5x scale

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.