Home / 57,406.12-86,167.56-40,784.92

Finding the Fourth Proportional to 57,406.12, 86,167.56 and 40,784.92

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Solution

The fourth proportional to 57,406.12, 86,167.56 and 40,784.92 is: 61,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,406.12 : 86,167.56 = 40,784.92 : x
  2. Step 2: Convert to fraction form
    57,406.12/86,167.56 = 40,784.92/x
  3. Step 3: Cross multiply
    57,406.12x = 86,167.56 × 40,784.92
  4. Step 4: Simplify right side
    57,406.12x = 3,514,337,041.20
  5. Step 5: Solve for x
    x = 3,514,337,041.20/57,406.12
  6. Step 6: Final answer
    x = 61,218.86

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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.