Home / 81,008.96-121,502.24-21,848.20

Finding the Fourth Proportional to 81,008.96, 121,502.24 and 21,848.20

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Solution

The fourth proportional to 81,008.96, 121,502.24 and 21,848.20 is: 32,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,008.96 : 121,502.24 = 21,848.20 : x
  2. Step 2: Convert to fraction form
    81,008.96/121,502.24 = 21,848.20/x
  3. Step 3: Cross multiply
    81,008.96x = 121,502.24 × 21,848.20
  4. Step 4: Simplify right side
    81,008.96x = 2,654,605,239.97
  5. Step 5: Solve for x
    x = 2,654,605,239.97/81,008.96
  6. Step 6: Final answer
    x = 32,769.28

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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.