Home / 56,725.50-78,281.55-31,575.18

Finding the Fourth Proportional to 56,725.50, 78,281.55 and 31,575.18

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Solution

The fourth proportional to 56,725.50, 78,281.55 and 31,575.18 is: 43,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,725.50 : 78,281.55 = 31,575.18 : x
  2. Step 2: Convert to fraction form
    56,725.50/78,281.55 = 31,575.18/x
  3. Step 3: Cross multiply
    56,725.50x = 78,281.55 × 31,575.18
  4. Step 4: Simplify right side
    56,725.50x = 2,471,754,031.93
  5. Step 5: Solve for x
    x = 2,471,754,031.93/56,725.50
  6. Step 6: Final answer
    x = 43,573.95

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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.