Home / 45,766.53-63,187.19-31,421.75

Finding the Fourth Proportional to 45,766.53, 63,187.19 and 31,421.75

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Solution

The fourth proportional to 45,766.53, 63,187.19 and 31,421.75 is: 43,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,766.53 : 63,187.19 = 31,421.75 : x
  2. Step 2: Convert to fraction form
    45,766.53/63,187.19 = 31,421.75/x
  3. Step 3: Cross multiply
    45,766.53x = 63,187.19 × 31,421.75
  4. Step 4: Simplify right side
    45,766.53x = 1,985,451,614.34
  5. Step 5: Solve for x
    x = 1,985,451,614.34/45,766.53
  6. Step 6: Final answer
    x = 43,382.18

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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.