Home / 89,541.40-134,282.04-45,139.92

Finding the Fourth Proportional to 89,541.40, 134,282.04 and 45,139.92

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Solution

The fourth proportional to 89,541.40, 134,282.04 and 45,139.92 is: 67,694.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,541.40 : 134,282.04 = 45,139.92 : x
  2. Step 2: Convert to fraction form
    89,541.40/134,282.04 = 45,139.92/x
  3. Step 3: Cross multiply
    89,541.40x = 134,282.04 × 45,139.92
  4. Step 4: Simplify right side
    89,541.40x = 6,061,480,543.04
  5. Step 5: Solve for x
    x = 6,061,480,543.04/89,541.40
  6. Step 6: Final answer
    x = 67,694.73

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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.