Home / 40,709.20-61,063.80-38,117.20

Finding the Fourth Proportional to 40,709.20, 61,063.80 and 38,117.20

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Solution

The fourth proportional to 40,709.20, 61,063.80 and 38,117.20 is: 57,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,709.20 : 61,063.80 = 38,117.20 : x
  2. Step 2: Convert to fraction form
    40,709.20/61,063.80 = 38,117.20/x
  3. Step 3: Cross multiply
    40,709.20x = 61,063.80 × 38,117.20
  4. Step 4: Simplify right side
    40,709.20x = 2,327,581,077.36
  5. Step 5: Solve for x
    x = 2,327,581,077.36/40,709.20
  6. Step 6: Final answer
    x = 57,175.80

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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.