Home / 64,123.20-88,462.80-40,233.60

Finding the Fourth Proportional to 64,123.20, 88,462.80 and 40,233.60

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Solution

The fourth proportional to 64,123.20, 88,462.80 and 40,233.60 is: 55,505.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,123.20 : 88,462.80 = 40,233.60 : x
  2. Step 2: Convert to fraction form
    64,123.20/88,462.80 = 40,233.60/x
  3. Step 3: Cross multiply
    64,123.20x = 88,462.80 × 40,233.60
  4. Step 4: Simplify right side
    64,123.20x = 3,559,176,910.08
  5. Step 5: Solve for x
    x = 3,559,176,910.08/64,123.20
  6. Step 6: Final answer
    x = 55,505.29

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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.