Home / 56,424.15-77,866.11-30,932.91

Finding the Fourth Proportional to 56,424.15, 77,866.11 and 30,932.91

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Solution

The fourth proportional to 56,424.15, 77,866.11 and 30,932.91 is: 42,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,424.15 : 77,866.11 = 30,932.91 : x
  2. Step 2: Convert to fraction form
    56,424.15/77,866.11 = 30,932.91/x
  3. Step 3: Cross multiply
    56,424.15x = 77,866.11 × 30,932.91
  4. Step 4: Simplify right side
    56,424.15x = 2,408,625,372.68
  5. Step 5: Solve for x
    x = 2,408,625,372.68/56,424.15
  6. Step 6: Final answer
    x = 42,687.85

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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.