Home / 57,999.76-87,033.16-31,345.86

Finding the Fourth Proportional to 57,999.76, 87,033.16 and 31,345.86

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Solution

The fourth proportional to 57,999.76, 87,033.16 and 31,345.86 is: 47,036.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,999.76 : 87,033.16 = 31,345.86 : x
  2. Step 2: Convert to fraction form
    57,999.76/87,033.16 = 31,345.86/x
  3. Step 3: Cross multiply
    57,999.76x = 87,033.16 × 31,345.86
  4. Step 4: Simplify right side
    57,999.76x = 2,728,129,248.72
  5. Step 5: Solve for x
    x = 2,728,129,248.72/57,999.76
  6. Step 6: Final answer
    x = 47,036.91

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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.