Home / 81,534.81-112,522.94-45,726.87

Finding the Fourth Proportional to 81,534.81, 112,522.94 and 45,726.87

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Solution

The fourth proportional to 81,534.81, 112,522.94 and 45,726.87 is: 63,105.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,534.81 : 112,522.94 = 45,726.87 : x
  2. Step 2: Convert to fraction form
    81,534.81/112,522.94 = 45,726.87/x
  3. Step 3: Cross multiply
    81,534.81x = 112,522.94 × 45,726.87
  4. Step 4: Simplify right side
    81,534.81x = 5,145,321,849.40
  5. Step 5: Solve for x
    x = 5,145,321,849.40/81,534.81
  6. Step 6: Final answer
    x = 63,105.83

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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.