Home / 48,380.50-72,439.51-42,402.70

Finding the Fourth Proportional to 48,380.50, 72,439.51 and 42,402.70

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Solution

The fourth proportional to 48,380.50, 72,439.51 and 42,402.70 is: 63,489.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,380.50 : 72,439.51 = 42,402.70 : x
  2. Step 2: Convert to fraction form
    48,380.50/72,439.51 = 42,402.70/x
  3. Step 3: Cross multiply
    48,380.50x = 72,439.51 × 42,402.70
  4. Step 4: Simplify right side
    48,380.50x = 3,071,630,810.68
  5. Step 5: Solve for x
    x = 3,071,630,810.68/48,380.50
  6. Step 6: Final answer
    x = 63,489.03

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1.5x scale

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.