Home / 48,005.10-72,007.65-40,401.90

Finding the Fourth Proportional to 48,005.10, 72,007.65 and 40,401.90

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Solution

The fourth proportional to 48,005.10, 72,007.65 and 40,401.90 is: 60,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,005.10 : 72,007.65 = 40,401.90 : x
  2. Step 2: Convert to fraction form
    48,005.10/72,007.65 = 40,401.90/x
  3. Step 3: Cross multiply
    48,005.10x = 72,007.65 × 40,401.90
  4. Step 4: Simplify right side
    48,005.10x = 2,909,245,874.54
  5. Step 5: Solve for x
    x = 2,909,245,874.54/48,005.10
  6. Step 6: Final answer
    x = 60,602.85

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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.