Home / 89,739.28-134,460.12-54,572.56

Finding the Fourth Proportional to 89,739.28, 134,460.12 and 54,572.56

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Solution

The fourth proportional to 89,739.28, 134,460.12 and 54,572.56 is: 81,768.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,739.28 : 134,460.12 = 54,572.56 : x
  2. Step 2: Convert to fraction form
    89,739.28/134,460.12 = 54,572.56/x
  3. Step 3: Cross multiply
    89,739.28x = 134,460.12 × 54,572.56
  4. Step 4: Simplify right side
    89,739.28x = 7,337,832,966.31
  5. Step 5: Solve for x
    x = 7,337,832,966.31/89,739.28
  6. Step 6: Final answer
    x = 81,768.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.