Home / 101,760.57-140,427.49-56,431.24

Finding the Fourth Proportional to 101,760.57, 140,427.49 and 56,431.24

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Solution

The fourth proportional to 101,760.57, 140,427.49 and 56,431.24 is: 77,873.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,760.57 : 140,427.49 = 56,431.24 : x
  2. Step 2: Convert to fraction form
    101,760.57/140,427.49 = 56,431.24/x
  3. Step 3: Cross multiply
    101,760.57x = 140,427.49 × 56,431.24
  4. Step 4: Simplify right side
    101,760.57x = 7,924,497,390.79
  5. Step 5: Solve for x
    x = 7,924,497,390.79/101,760.57
  6. Step 6: Final answer
    x = 77,873.95

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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.