Home / 71,979.75-99,305.28-41,748.12

Finding the Fourth Proportional to 71,979.75, 99,305.28 and 41,748.12

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Solution

The fourth proportional to 71,979.75, 99,305.28 and 41,748.12 is: 57,596.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,979.75 : 99,305.28 = 41,748.12 : x
  2. Step 2: Convert to fraction form
    71,979.75/99,305.28 = 41,748.12/x
  3. Step 3: Cross multiply
    71,979.75x = 99,305.28 × 41,748.12
  4. Step 4: Simplify right side
    71,979.75x = 4,145,808,746.07
  5. Step 5: Solve for x
    x = 4,145,808,746.07/71,979.75
  6. Step 6: Final answer
    x = 57,596.88

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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.