Home / 56,726.28-78,279.20-31,227.68

Finding the Fourth Proportional to 56,726.28, 78,279.20 and 31,227.68

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Solution

The fourth proportional to 56,726.28, 78,279.20 and 31,227.68 is: 43,092.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,726.28 : 78,279.20 = 31,227.68 : x
  2. Step 2: Convert to fraction form
    56,726.28/78,279.20 = 31,227.68/x
  3. Step 3: Cross multiply
    56,726.28x = 78,279.20 × 31,227.68
  4. Step 4: Simplify right side
    56,726.28x = 2,444,477,808.26
  5. Step 5: Solve for x
    x = 2,444,477,808.26/56,726.28
  6. Step 6: Final answer
    x = 43,092.51

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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.