Home / 89,543.40-134,285.04-45,141.92

Finding the Fourth Proportional to 89,543.40, 134,285.04 and 45,141.92

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Solution

The fourth proportional to 89,543.40, 134,285.04 and 45,141.92 is: 67,697.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,543.40 : 134,285.04 = 45,141.92 : x
  2. Step 2: Convert to fraction form
    89,543.40/134,285.04 = 45,141.92/x
  3. Step 3: Cross multiply
    89,543.40x = 134,285.04 × 45,141.92
  4. Step 4: Simplify right side
    89,543.40x = 6,061,884,532.88
  5. Step 5: Solve for x
    x = 6,061,884,532.88/89,543.40
  6. Step 6: Final answer
    x = 67,697.73

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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.