Home / 77,440.38-106,868.79-45,174.12

Finding the Fourth Proportional to 77,440.38, 106,868.79 and 45,174.12

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Solution

The fourth proportional to 77,440.38, 106,868.79 and 45,174.12 is: 62,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,440.38 : 106,868.79 = 45,174.12 : x
  2. Step 2: Convert to fraction form
    77,440.38/106,868.79 = 45,174.12/x
  3. Step 3: Cross multiply
    77,440.38x = 106,868.79 × 45,174.12
  4. Step 4: Simplify right side
    77,440.38x = 4,827,703,543.71
  5. Step 5: Solve for x
    x = 4,827,703,543.71/77,440.38
  6. Step 6: Final answer
    x = 62,340.91

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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.