Home / 77,387.60-106,817.57-50,534.28

Finding the Fourth Proportional to 77,387.60, 106,817.57 and 50,534.28

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Solution

The fourth proportional to 77,387.60, 106,817.57 and 50,534.28 is: 69,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,387.60 : 106,817.57 = 50,534.28 : x
  2. Step 2: Convert to fraction form
    77,387.60/106,817.57 = 50,534.28/x
  3. Step 3: Cross multiply
    77,387.60x = 106,817.57 × 50,534.28
  4. Step 4: Simplify right side
    77,387.60x = 5,397,948,928.13
  5. Step 5: Solve for x
    x = 5,397,948,928.13/77,387.60
  6. Step 6: Final answer
    x = 69,752.11

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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.