Home / 80,445.24-120,510.90-52,659

Finding the Fourth Proportional to 80,445.24, 120,510.90 and 52,659

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Solution

The fourth proportional to 80,445.24, 120,510.90 and 52,659 is: 78,885.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,445.24 : 120,510.90 = 52,659 : x
  2. Step 2: Convert to fraction form
    80,445.24/120,510.90 = 52,659/x
  3. Step 3: Cross multiply
    80,445.24x = 120,510.90 × 52,659
  4. Step 4: Simplify right side
    80,445.24x = 6,345,983,483.10
  5. Step 5: Solve for x
    x = 6,345,983,483.10/80,445.24
  6. Step 6: Final answer
    x = 78,885.75

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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.