Home / 92,345.72-127,542.18-62,078.56

Finding the Fourth Proportional to 92,345.72, 127,542.18 and 62,078.56

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Solution

The fourth proportional to 92,345.72, 127,542.18 and 62,078.56 is: 85,739.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,345.72 : 127,542.18 = 62,078.56 : x
  2. Step 2: Convert to fraction form
    92,345.72/127,542.18 = 62,078.56/x
  3. Step 3: Cross multiply
    92,345.72x = 127,542.18 × 62,078.56
  4. Step 4: Simplify right side
    92,345.72x = 7,917,634,873.66
  5. Step 5: Solve for x
    x = 7,917,634,873.66/92,345.72
  6. Step 6: Final answer
    x = 85,739.06

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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.