Home / 83,088.30-124,490.64-45,679.70

Finding the Fourth Proportional to 83,088.30, 124,490.64 and 45,679.70

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Solution

The fourth proportional to 83,088.30, 124,490.64 and 45,679.70 is: 68,441.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,088.30 : 124,490.64 = 45,679.70 : x
  2. Step 2: Convert to fraction form
    83,088.30/124,490.64 = 45,679.70/x
  3. Step 3: Cross multiply
    83,088.30x = 124,490.64 × 45,679.70
  4. Step 4: Simplify right side
    83,088.30x = 5,686,695,088.01
  5. Step 5: Solve for x
    x = 5,686,695,088.01/83,088.30
  6. Step 6: Final answer
    x = 68,441.59

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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.