Home / 78,874.08-118,312.14-22,715.10

Finding the Fourth Proportional to 78,874.08, 118,312.14 and 22,715.10

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Solution

The fourth proportional to 78,874.08, 118,312.14 and 22,715.10 is: 34,072.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,874.08 : 118,312.14 = 22,715.10 : x
  2. Step 2: Convert to fraction form
    78,874.08/118,312.14 = 22,715.10/x
  3. Step 3: Cross multiply
    78,874.08x = 118,312.14 × 22,715.10
  4. Step 4: Simplify right side
    78,874.08x = 2,687,472,091.31
  5. Step 5: Solve for x
    x = 2,687,472,091.31/78,874.08
  6. Step 6: Final answer
    x = 34,072.94

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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.