Home / 89,471.52-123,473.09-48,638.40

Finding the Fourth Proportional to 89,471.52, 123,473.09 and 48,638.40

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Solution

The fourth proportional to 89,471.52, 123,473.09 and 48,638.40 is: 67,122.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,471.52 : 123,473.09 = 48,638.40 : x
  2. Step 2: Convert to fraction form
    89,471.52/123,473.09 = 48,638.40/x
  3. Step 3: Cross multiply
    89,471.52x = 123,473.09 × 48,638.40
  4. Step 4: Simplify right side
    89,471.52x = 6,005,533,297.46
  5. Step 5: Solve for x
    x = 6,005,533,297.46/89,471.52
  6. Step 6: Final answer
    x = 67,122.29

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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.