Home / 56,641.68-78,170.52-31,152.95

Finding the Fourth Proportional to 56,641.68, 78,170.52 and 31,152.95

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Solution

The fourth proportional to 56,641.68, 78,170.52 and 31,152.95 is: 42,993.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,641.68 : 78,170.52 = 31,152.95 : x
  2. Step 2: Convert to fraction form
    56,641.68/78,170.52 = 31,152.95/x
  3. Step 3: Cross multiply
    56,641.68x = 78,170.52 × 31,152.95
  4. Step 4: Simplify right side
    56,641.68x = 2,435,242,584.62
  5. Step 5: Solve for x
    x = 2,435,242,584.62/56,641.68
  6. Step 6: Final answer
    x = 42,993.83

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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.