Home / 80,001.60-120,002.40-48,508.80

Finding the Fourth Proportional to 80,001.60, 120,002.40 and 48,508.80

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Solution

The fourth proportional to 80,001.60, 120,002.40 and 48,508.80 is: 72,763.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,001.60 : 120,002.40 = 48,508.80 : x
  2. Step 2: Convert to fraction form
    80,001.60/120,002.40 = 48,508.80/x
  3. Step 3: Cross multiply
    80,001.60x = 120,002.40 × 48,508.80
  4. Step 4: Simplify right side
    80,001.60x = 5,821,172,421.12
  5. Step 5: Solve for x
    x = 5,821,172,421.12/80,001.60
  6. Step 6: Final answer
    x = 72,763.20

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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.