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Finding the Fourth Proportional to 89,737.28, 134,457.12 and 54,570.56

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Solution

The fourth proportional to 89,737.28, 134,457.12 and 54,570.56 is: 81,765.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,737.28 : 134,457.12 = 54,570.56 : x
  2. Step 2: Convert to fraction form
    89,737.28/134,457.12 = 54,570.56/x
  3. Step 3: Cross multiply
    89,737.28x = 134,457.12 × 54,570.56
  4. Step 4: Simplify right side
    89,737.28x = 7,337,400,334.39
  5. Step 5: Solve for x
    x = 7,337,400,334.39/89,737.28
  6. Step 6: Final answer
    x = 81,765.35

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1.5x scale

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.