Home / 48,478.38-72,703.52-18,889.62

Finding the Fourth Proportional to 48,478.38, 72,703.52 and 18,889.62

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Solution

The fourth proportional to 48,478.38, 72,703.52 and 18,889.62 is: 28,328.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,478.38 : 72,703.52 = 18,889.62 : x
  2. Step 2: Convert to fraction form
    48,478.38/72,703.52 = 18,889.62/x
  3. Step 3: Cross multiply
    48,478.38x = 72,703.52 × 18,889.62
  4. Step 4: Simplify right side
    48,478.38x = 1,373,341,865.46
  5. Step 5: Solve for x
    x = 1,373,341,865.46/48,478.38
  6. Step 6: Final answer
    x = 28,328.96

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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.