Home / 48,387.66-72,586.08-18,807.78

Finding the Fourth Proportional to 48,387.66, 72,586.08 and 18,807.78

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Solution

The fourth proportional to 48,387.66, 72,586.08 and 18,807.78 is: 28,213.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,387.66 : 72,586.08 = 18,807.78 : x
  2. Step 2: Convert to fraction form
    48,387.66/72,586.08 = 18,807.78/x
  3. Step 3: Cross multiply
    48,387.66x = 72,586.08 × 18,807.78
  4. Step 4: Simplify right side
    48,387.66x = 1,365,183,023.70
  5. Step 5: Solve for x
    x = 1,365,183,023.70/48,387.66
  6. Step 6: Final answer
    x = 28,213.45

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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.