Home / 56,171.80-77,517.33-30,677.76

Finding the Fourth Proportional to 56,171.80, 77,517.33 and 30,677.76

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Solution

The fourth proportional to 56,171.80, 77,517.33 and 30,677.76 is: 42,335.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,171.80 : 77,517.33 = 30,677.76 : x
  2. Step 2: Convert to fraction form
    56,171.80/77,517.33 = 30,677.76/x
  3. Step 3: Cross multiply
    56,171.80x = 77,517.33 × 30,677.76
  4. Step 4: Simplify right side
    56,171.80x = 2,378,058,045.58
  5. Step 5: Solve for x
    x = 2,378,058,045.58/56,171.80
  6. Step 6: Final answer
    x = 42,335.44

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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.