Home / 71,945.70-99,285.18-40,116.62

Finding the Fourth Proportional to 71,945.70, 99,285.18 and 40,116.62

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Solution

The fourth proportional to 71,945.70, 99,285.18 and 40,116.62 is: 55,361.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,945.70 : 99,285.18 = 40,116.62 : x
  2. Step 2: Convert to fraction form
    71,945.70/99,285.18 = 40,116.62/x
  3. Step 3: Cross multiply
    71,945.70x = 99,285.18 × 40,116.62
  4. Step 4: Simplify right side
    71,945.70x = 3,982,985,837.69
  5. Step 5: Solve for x
    x = 3,982,985,837.69/71,945.70
  6. Step 6: Final answer
    x = 55,361.00

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1.5x scale

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.