Home / 48,288.10-72,432.15-40,512.10

Finding the Fourth Proportional to 48,288.10, 72,432.15 and 40,512.10

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Solution

The fourth proportional to 48,288.10, 72,432.15 and 40,512.10 is: 60,768.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,288.10 : 72,432.15 = 40,512.10 : x
  2. Step 2: Convert to fraction form
    48,288.10/72,432.15 = 40,512.10/x
  3. Step 3: Cross multiply
    48,288.10x = 72,432.15 × 40,512.10
  4. Step 4: Simplify right side
    48,288.10x = 2,934,378,504.02
  5. Step 5: Solve for x
    x = 2,934,378,504.02/48,288.10
  6. Step 6: Final answer
    x = 60,768.15

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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.