Home / 67,971.24-101,956.86-21,228.12

Finding the Fourth Proportional to 67,971.24, 101,956.86 and 21,228.12

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Solution

The fourth proportional to 67,971.24, 101,956.86 and 21,228.12 is: 31,842.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,971.24 : 101,956.86 = 21,228.12 : x
  2. Step 2: Convert to fraction form
    67,971.24/101,956.86 = 21,228.12/x
  3. Step 3: Cross multiply
    67,971.24x = 101,956.86 × 21,228.12
  4. Step 4: Simplify right side
    67,971.24x = 2,164,352,458.90
  5. Step 5: Solve for x
    x = 2,164,352,458.90/67,971.24
  6. Step 6: Final answer
    x = 31,842.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.