Home / 77,059.39-106,341.33-54,121.45

Finding the Fourth Proportional to 77,059.39, 106,341.33 and 54,121.45

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Solution

The fourth proportional to 77,059.39, 106,341.33 and 54,121.45 is: 74,687.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,059.39 : 106,341.33 = 54,121.45 : x
  2. Step 2: Convert to fraction form
    77,059.39/106,341.33 = 54,121.45/x
  3. Step 3: Cross multiply
    77,059.39x = 106,341.33 × 54,121.45
  4. Step 4: Simplify right side
    77,059.39x = 5,755,346,974.53
  5. Step 5: Solve for x
    x = 5,755,346,974.53/77,059.39
  6. Step 6: Final answer
    x = 74,687.16

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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.