Home / 78,401.24-117,448.76-62,639.04

Finding the Fourth Proportional to 78,401.24, 117,448.76 and 62,639.04

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Solution

The fourth proportional to 78,401.24, 117,448.76 and 62,639.04 is: 93,836.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,401.24 : 117,448.76 = 62,639.04 : x
  2. Step 2: Convert to fraction form
    78,401.24/117,448.76 = 62,639.04/x
  3. Step 3: Cross multiply
    78,401.24x = 117,448.76 × 62,639.04
  4. Step 4: Simplify right side
    78,401.24x = 7,356,877,575.59
  5. Step 5: Solve for x
    x = 7,356,877,575.59/78,401.24
  6. Step 6: Final answer
    x = 93,836.24

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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.