Home / 57,720.41-86,508.34-31,000.74

Finding the Fourth Proportional to 57,720.41, 86,508.34 and 31,000.74

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Solution

The fourth proportional to 57,720.41, 86,508.34 and 31,000.74 is: 46,462.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,720.41 : 86,508.34 = 31,000.74 : x
  2. Step 2: Convert to fraction form
    57,720.41/86,508.34 = 31,000.74/x
  3. Step 3: Cross multiply
    57,720.41x = 86,508.34 × 31,000.74
  4. Step 4: Simplify right side
    57,720.41x = 2,681,822,594.92
  5. Step 5: Solve for x
    x = 2,681,822,594.92/57,720.41
  6. Step 6: Final answer
    x = 46,462.29

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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.