Home / 101,758.28-140,433.57-56,440.58

Finding the Fourth Proportional to 101,758.28, 140,433.57 and 56,440.58

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Solution

The fourth proportional to 101,758.28, 140,433.57 and 56,440.58 is: 77,891.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,758.28 : 140,433.57 = 56,440.58 : x
  2. Step 2: Convert to fraction form
    101,758.28/140,433.57 = 56,440.58/x
  3. Step 3: Cross multiply
    101,758.28x = 140,433.57 × 56,440.58
  4. Step 4: Simplify right side
    101,758.28x = 7,926,151,440.10
  5. Step 5: Solve for x
    x = 7,926,151,440.10/101,758.28
  6. Step 6: Final answer
    x = 77,891.96

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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.