Home / 48,459.20-72,688.80-40,002.80

Finding the Fourth Proportional to 48,459.20, 72,688.80 and 40,002.80

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Solution

The fourth proportional to 48,459.20, 72,688.80 and 40,002.80 is: 60,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,459.20 : 72,688.80 = 40,002.80 : x
  2. Step 2: Convert to fraction form
    48,459.20/72,688.80 = 40,002.80/x
  3. Step 3: Cross multiply
    48,459.20x = 72,688.80 × 40,002.80
  4. Step 4: Simplify right side
    48,459.20x = 2,907,755,528.64
  5. Step 5: Solve for x
    x = 2,907,755,528.64/48,459.20
  6. Step 6: Final answer
    x = 60,004.20

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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.