Home / 62,939.85-94,387.29-20,812.16

Finding the Fourth Proportional to 62,939.85, 94,387.29 and 20,812.16

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Solution

The fourth proportional to 62,939.85, 94,387.29 and 20,812.16 is: 31,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,939.85 : 94,387.29 = 20,812.16 : x
  2. Step 2: Convert to fraction form
    62,939.85/94,387.29 = 20,812.16/x
  3. Step 3: Cross multiply
    62,939.85x = 94,387.29 × 20,812.16
  4. Step 4: Simplify right side
    62,939.85x = 1,964,403,041.42
  5. Step 5: Solve for x
    x = 1,964,403,041.42/62,939.85
  6. Step 6: Final answer
    x = 31,210.80

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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.