Home / 72,932.85-100,647.27-39,398.85

Finding the Fourth Proportional to 72,932.85, 100,647.27 and 39,398.85

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Solution

The fourth proportional to 72,932.85, 100,647.27 and 39,398.85 is: 54,370.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,932.85 : 100,647.27 = 39,398.85 : x
  2. Step 2: Convert to fraction form
    72,932.85/100,647.27 = 39,398.85/x
  3. Step 3: Cross multiply
    72,932.85x = 100,647.27 × 39,398.85
  4. Step 4: Simplify right side
    72,932.85x = 3,965,386,693.64
  5. Step 5: Solve for x
    x = 3,965,386,693.64/72,932.85
  6. Step 6: Final answer
    x = 54,370.38

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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.