Home / 41,129.60-61,645.80-30,729.20

Finding the Fourth Proportional to 41,129.60, 61,645.80 and 30,729.20

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Solution

The fourth proportional to 41,129.60, 61,645.80 and 30,729.20 is: 46,057.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,129.60 : 61,645.80 = 30,729.20 : x
  2. Step 2: Convert to fraction form
    41,129.60/61,645.80 = 30,729.20/x
  3. Step 3: Cross multiply
    41,129.60x = 61,645.80 × 30,729.20
  4. Step 4: Simplify right side
    41,129.60x = 1,894,326,117.36
  5. Step 5: Solve for x
    x = 1,894,326,117.36/41,129.60
  6. Step 6: Final answer
    x = 46,057.49

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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.