Home / 71,276.24-98,359.80-39,443.28

Finding the Fourth Proportional to 71,276.24, 98,359.80 and 39,443.28

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Solution

The fourth proportional to 71,276.24, 98,359.80 and 39,443.28 is: 54,430.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,276.24 : 98,359.80 = 39,443.28 : x
  2. Step 2: Convert to fraction form
    71,276.24/98,359.80 = 39,443.28/x
  3. Step 3: Cross multiply
    71,276.24x = 98,359.80 × 39,443.28
  4. Step 4: Simplify right side
    71,276.24x = 3,879,633,132.14
  5. Step 5: Solve for x
    x = 3,879,633,132.14/71,276.24
  6. Step 6: Final answer
    x = 54,430.95

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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.