Home / 56,218.12-77,644.78-38,281.98

Finding the Fourth Proportional to 56,218.12, 77,644.78 and 38,281.98

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Solution

The fourth proportional to 56,218.12, 77,644.78 and 38,281.98 is: 52,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,218.12 : 77,644.78 = 38,281.98 : x
  2. Step 2: Convert to fraction form
    56,218.12/77,644.78 = 38,281.98/x
  3. Step 3: Cross multiply
    56,218.12x = 77,644.78 × 38,281.98
  4. Step 4: Simplify right side
    56,218.12x = 2,972,396,110.53
  5. Step 5: Solve for x
    x = 2,972,396,110.53/56,218.12
  6. Step 6: Final answer
    x = 52,872.57

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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.