Home / 78,637.50-108,524.07-45,105.66

Finding the Fourth Proportional to 78,637.50, 108,524.07 and 45,105.66

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Solution

The fourth proportional to 78,637.50, 108,524.07 and 45,105.66 is: 62,248.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,637.50 : 108,524.07 = 45,105.66 : x
  2. Step 2: Convert to fraction form
    78,637.50/108,524.07 = 45,105.66/x
  3. Step 3: Cross multiply
    78,637.50x = 108,524.07 × 45,105.66
  4. Step 4: Simplify right side
    78,637.50x = 4,895,049,803.24
  5. Step 5: Solve for x
    x = 4,895,049,803.24/78,637.50
  6. Step 6: Final answer
    x = 62,248.29

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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.