Home / 71,406.02-98,540.29-39,579.70

Finding the Fourth Proportional to 71,406.02, 98,540.29 and 39,579.70

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Solution

The fourth proportional to 71,406.02, 98,540.29 and 39,579.70 is: 54,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,406.02 : 98,540.29 = 39,579.70 : x
  2. Step 2: Convert to fraction form
    71,406.02/98,540.29 = 39,579.70/x
  3. Step 3: Cross multiply
    71,406.02x = 98,540.29 × 39,579.70
  4. Step 4: Simplify right side
    71,406.02x = 3,900,195,116.11
  5. Step 5: Solve for x
    x = 3,900,195,116.11/71,406.02
  6. Step 6: Final answer
    x = 54,619.98

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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.