Home / 72,726.10-100,349.79-40,456.46

Finding the Fourth Proportional to 72,726.10, 100,349.79 and 40,456.46

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Solution

The fourth proportional to 72,726.10, 100,349.79 and 40,456.46 is: 55,823.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,726.10 : 100,349.79 = 40,456.46 : x
  2. Step 2: Convert to fraction form
    72,726.10/100,349.79 = 40,456.46/x
  3. Step 3: Cross multiply
    72,726.10x = 100,349.79 × 40,456.46
  4. Step 4: Simplify right side
    72,726.10x = 4,059,797,265.14
  5. Step 5: Solve for x
    x = 4,059,797,265.14/72,726.10
  6. Step 6: Final answer
    x = 55,823.11

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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.