Home / 40,761.20-61,127.40-14,466.80

Finding the Fourth Proportional to 40,761.20, 61,127.40 and 14,466.80

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Solution

The fourth proportional to 40,761.20, 61,127.40 and 14,466.80 is: 21,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,761.20 : 61,127.40 = 14,466.80 : x
  2. Step 2: Convert to fraction form
    40,761.20/61,127.40 = 14,466.80/x
  3. Step 3: Cross multiply
    40,761.20x = 61,127.40 × 14,466.80
  4. Step 4: Simplify right side
    40,761.20x = 884,317,870.32
  5. Step 5: Solve for x
    x = 884,317,870.32/40,761.20
  6. Step 6: Final answer
    x = 21,695.09

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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.