Home / 80,872.50-111,602.55-45,061.74

Finding the Fourth Proportional to 80,872.50, 111,602.55 and 45,061.74

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Solution

The fourth proportional to 80,872.50, 111,602.55 and 45,061.74 is: 62,184.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,872.50 : 111,602.55 = 45,061.74 : x
  2. Step 2: Convert to fraction form
    80,872.50/111,602.55 = 45,061.74/x
  3. Step 3: Cross multiply
    80,872.50x = 111,602.55 × 45,061.74
  4. Step 4: Simplify right side
    80,872.50x = 5,029,005,091.44
  5. Step 5: Solve for x
    x = 5,029,005,091.44/80,872.50
  6. Step 6: Final answer
    x = 62,184.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.