Home / 48,678.10-72,665.03-42,773.20

Finding the Fourth Proportional to 48,678.10, 72,665.03 and 42,773.20

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Solution

The fourth proportional to 48,678.10, 72,665.03 and 42,773.20 is: 63,850.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,678.10 : 72,665.03 = 42,773.20 : x
  2. Step 2: Convert to fraction form
    48,678.10/72,665.03 = 42,773.20/x
  3. Step 3: Cross multiply
    48,678.10x = 72,665.03 × 42,773.20
  4. Step 4: Simplify right side
    48,678.10x = 3,108,115,861.20
  5. Step 5: Solve for x
    x = 3,108,115,861.20/48,678.10
  6. Step 6: Final answer
    x = 63,850.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.