Home / 41,140.80-61,711.20-30,772.80

Finding the Fourth Proportional to 41,140.80, 61,711.20 and 30,772.80

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Solution

The fourth proportional to 41,140.80, 61,711.20 and 30,772.80 is: 46,159.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,140.80 : 61,711.20 = 30,772.80 : x
  2. Step 2: Convert to fraction form
    41,140.80/61,711.20 = 30,772.80/x
  3. Step 3: Cross multiply
    41,140.80x = 61,711.20 × 30,772.80
  4. Step 4: Simplify right side
    41,140.80x = 1,899,026,415.36
  5. Step 5: Solve for x
    x = 1,899,026,415.36/41,140.80
  6. Step 6: Final answer
    x = 46,159.20

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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.