Home / 112,720.56-169,082.28-53,562

Finding the Fourth Proportional to 112,720.56, 169,082.28 and 53,562

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Solution

The fourth proportional to 112,720.56, 169,082.28 and 53,562 is: 80,343.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,720.56 : 169,082.28 = 53,562 : x
  2. Step 2: Convert to fraction form
    112,720.56/169,082.28 = 53,562/x
  3. Step 3: Cross multiply
    112,720.56x = 169,082.28 × 53,562
  4. Step 4: Simplify right side
    112,720.56x = 9,056,385,081.36
  5. Step 5: Solve for x
    x = 9,056,385,081.36/112,720.56
  6. Step 6: Final answer
    x = 80,343.68

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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.