Home / 80,223.56-120,445.76-40,807.32

Finding the Fourth Proportional to 80,223.56, 120,445.76 and 40,807.32

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Solution

The fourth proportional to 80,223.56, 120,445.76 and 40,807.32 is: 61,267.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,223.56 : 120,445.76 = 40,807.32 : x
  2. Step 2: Convert to fraction form
    80,223.56/120,445.76 = 40,807.32/x
  3. Step 3: Cross multiply
    80,223.56x = 120,445.76 × 40,807.32
  4. Step 4: Simplify right side
    80,223.56x = 4,915,068,670.96
  5. Step 5: Solve for x
    x = 4,915,068,670.96/80,223.56
  6. Step 6: Final answer
    x = 61,267.15

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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.