Home / 81,008.96-111,946.68-58,422.08

Finding the Fourth Proportional to 81,008.96, 111,946.68 and 58,422.08

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Solution

The fourth proportional to 81,008.96, 111,946.68 and 58,422.08 is: 80,733.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,008.96 : 111,946.68 = 58,422.08 : x
  2. Step 2: Convert to fraction form
    81,008.96/111,946.68 = 58,422.08/x
  3. Step 3: Cross multiply
    81,008.96x = 111,946.68 × 58,422.08
  4. Step 4: Simplify right side
    81,008.96x = 6,540,157,894.69
  5. Step 5: Solve for x
    x = 6,540,157,894.69/81,008.96
  6. Step 6: Final answer
    x = 80,733.76

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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.