Home / 89,622.71-123,678.47-49,335.44

Finding the Fourth Proportional to 89,622.71, 123,678.47 and 49,335.44

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Solution

The fourth proportional to 89,622.71, 123,678.47 and 49,335.44 is: 68,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,622.71 : 123,678.47 = 49,335.44 : x
  2. Step 2: Convert to fraction form
    89,622.71/123,678.47 = 49,335.44/x
  3. Step 3: Cross multiply
    89,622.71x = 123,678.47 × 49,335.44
  4. Step 4: Simplify right side
    89,622.71x = 6,101,730,870.91
  5. Step 5: Solve for x
    x = 6,101,730,870.91/89,622.71
  6. Step 6: Final answer
    x = 68,082.42

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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.