Home / 58,287.60-87,316.20-31,945.20

Finding the Fourth Proportional to 58,287.60, 87,316.20 and 31,945.20

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Solution

The fourth proportional to 58,287.60, 87,316.20 and 31,945.20 is: 47,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,287.60 : 87,316.20 = 31,945.20 : x
  2. Step 2: Convert to fraction form
    58,287.60/87,316.20 = 31,945.20/x
  3. Step 3: Cross multiply
    58,287.60x = 87,316.20 × 31,945.20
  4. Step 4: Simplify right side
    58,287.60x = 2,789,333,472.24
  5. Step 5: Solve for x
    x = 2,789,333,472.24/58,287.60
  6. Step 6: Final answer
    x = 47,854.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.