Home / 71,947.98-99,276.51-40,116.06

Finding the Fourth Proportional to 71,947.98, 99,276.51 and 40,116.06

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Solution

The fourth proportional to 71,947.98, 99,276.51 and 40,116.06 is: 55,353.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,947.98 : 99,276.51 = 40,116.06 : x
  2. Step 2: Convert to fraction form
    71,947.98/99,276.51 = 40,116.06/x
  3. Step 3: Cross multiply
    71,947.98x = 99,276.51 × 40,116.06
  4. Step 4: Simplify right side
    71,947.98x = 3,982,582,431.75
  5. Step 5: Solve for x
    x = 3,982,582,431.75/71,947.98
  6. Step 6: Final answer
    x = 55,353.64

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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.