Home / 77,229.60-106,581-47,010.12

Finding the Fourth Proportional to 77,229.60, 106,581 and 47,010.12

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Solution

The fourth proportional to 77,229.60, 106,581 and 47,010.12 is: 64,876.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,229.60 : 106,581 = 47,010.12 : x
  2. Step 2: Convert to fraction form
    77,229.60/106,581 = 47,010.12/x
  3. Step 3: Cross multiply
    77,229.60x = 106,581 × 47,010.12
  4. Step 4: Simplify right side
    77,229.60x = 5,010,385,599.72
  5. Step 5: Solve for x
    x = 5,010,385,599.72/77,229.60
  6. Step 6: Final answer
    x = 64,876.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.