Home / 71,966.64-99,315.24-40,132.12

Finding the Fourth Proportional to 71,966.64, 99,315.24 and 40,132.12

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Solution

The fourth proportional to 71,966.64, 99,315.24 and 40,132.12 is: 55,383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,966.64 : 99,315.24 = 40,132.12 : x
  2. Step 2: Convert to fraction form
    71,966.64/99,315.24 = 40,132.12/x
  3. Step 3: Cross multiply
    71,966.64x = 99,315.24 × 40,132.12
  4. Step 4: Simplify right side
    71,966.64x = 3,985,731,129.51
  5. Step 5: Solve for x
    x = 3,985,731,129.51/71,966.64
  6. Step 6: Final answer
    x = 55,383.04

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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.