Home / 80,445.15-120,628.85-47,176.02

Finding the Fourth Proportional to 80,445.15, 120,628.85 and 47,176.02

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Solution

The fourth proportional to 80,445.15, 120,628.85 and 47,176.02 is: 70,741.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,445.15 : 120,628.85 = 47,176.02 : x
  2. Step 2: Convert to fraction form
    80,445.15/120,628.85 = 47,176.02/x
  3. Step 3: Cross multiply
    80,445.15x = 120,628.85 × 47,176.02
  4. Step 4: Simplify right side
    80,445.15x = 5,690,788,804.30
  5. Step 5: Solve for x
    x = 5,690,788,804.30/80,445.15
  6. Step 6: Final answer
    x = 70,741.23

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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.