Home / 56,660.16-78,192-31,167.60

Finding the Fourth Proportional to 56,660.16, 78,192 and 31,167.60

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Solution

The fourth proportional to 56,660.16, 78,192 and 31,167.60 is: 43,011.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,660.16 : 78,192 = 31,167.60 : x
  2. Step 2: Convert to fraction form
    56,660.16/78,192 = 31,167.60/x
  3. Step 3: Cross multiply
    56,660.16x = 78,192 × 31,167.60
  4. Step 4: Simplify right side
    56,660.16x = 2,437,056,979.20
  5. Step 5: Solve for x
    x = 2,437,056,979.20/56,660.16
  6. Step 6: Final answer
    x = 43,011.83

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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.