Home / 71,952.12-99,294.30-40,122.36

Finding the Fourth Proportional to 71,952.12, 99,294.30 and 40,122.36

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Solution

The fourth proportional to 71,952.12, 99,294.30 and 40,122.36 is: 55,369.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,952.12 : 99,294.30 = 40,122.36 : x
  2. Step 2: Convert to fraction form
    71,952.12/99,294.30 = 40,122.36/x
  3. Step 3: Cross multiply
    71,952.12x = 99,294.30 × 40,122.36
  4. Step 4: Simplify right side
    71,952.12x = 3,983,921,650.55
  5. Step 5: Solve for x
    x = 3,983,921,650.55/71,952.12
  6. Step 6: Final answer
    x = 55,369.07

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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.