Home / 48,176.20-72,264.30-13,115.80

Finding the Fourth Proportional to 48,176.20, 72,264.30 and 13,115.80

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Solution

The fourth proportional to 48,176.20, 72,264.30 and 13,115.80 is: 19,673.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,176.20 : 72,264.30 = 13,115.80 : x
  2. Step 2: Convert to fraction form
    48,176.20/72,264.30 = 13,115.80/x
  3. Step 3: Cross multiply
    48,176.20x = 72,264.30 × 13,115.80
  4. Step 4: Simplify right side
    48,176.20x = 947,804,105.94
  5. Step 5: Solve for x
    x = 947,804,105.94/48,176.20
  6. Step 6: Final answer
    x = 19,673.70

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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.