Home / 78,929.40-118,402.02-22,770.90

Finding the Fourth Proportional to 78,929.40, 118,402.02 and 22,770.90

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Solution

The fourth proportional to 78,929.40, 118,402.02 and 22,770.90 is: 34,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,929.40 : 118,402.02 = 22,770.90 : x
  2. Step 2: Convert to fraction form
    78,929.40/118,402.02 = 22,770.90/x
  3. Step 3: Cross multiply
    78,929.40x = 118,402.02 × 22,770.90
  4. Step 4: Simplify right side
    78,929.40x = 2,696,120,557.22
  5. Step 5: Solve for x
    x = 2,696,120,557.22/78,929.40
  6. Step 6: Final answer
    x = 34,158.63

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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.