Home / 78,403.24-117,451.76-62,641.04

Finding the Fourth Proportional to 78,403.24, 117,451.76 and 62,641.04

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Solution

The fourth proportional to 78,403.24, 117,451.76 and 62,641.04 is: 93,839.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,403.24 : 117,451.76 = 62,641.04 : x
  2. Step 2: Convert to fraction form
    78,403.24/117,451.76 = 62,641.04/x
  3. Step 3: Cross multiply
    78,403.24x = 117,451.76 × 62,641.04
  4. Step 4: Simplify right side
    78,403.24x = 7,357,300,396.23
  5. Step 5: Solve for x
    x = 7,357,300,396.23/78,403.24
  6. Step 6: Final answer
    x = 93,839.24

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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.