Home / 78,736.12-118,079.95-22,561.18

Finding the Fourth Proportional to 78,736.12, 118,079.95 and 22,561.18

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Solution

The fourth proportional to 78,736.12, 118,079.95 and 22,561.18 is: 33,834.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,736.12 : 118,079.95 = 22,561.18 : x
  2. Step 2: Convert to fraction form
    78,736.12/118,079.95 = 22,561.18/x
  3. Step 3: Cross multiply
    78,736.12x = 118,079.95 × 22,561.18
  4. Step 4: Simplify right side
    78,736.12x = 2,664,023,006.34
  5. Step 5: Solve for x
    x = 2,664,023,006.34/78,736.12
  6. Step 6: Final answer
    x = 33,834.83

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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.