Home / 54,220.16-81,334.40-18,666.88

Finding the Fourth Proportional to 54,220.16, 81,334.40 and 18,666.88

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Solution

The fourth proportional to 54,220.16, 81,334.40 and 18,666.88 is: 28,001.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,220.16 : 81,334.40 = 18,666.88 : x
  2. Step 2: Convert to fraction form
    54,220.16/81,334.40 = 18,666.88/x
  3. Step 3: Cross multiply
    54,220.16x = 81,334.40 × 18,666.88
  4. Step 4: Simplify right side
    54,220.16x = 1,518,259,484.67
  5. Step 5: Solve for x
    x = 1,518,259,484.67/54,220.16
  6. Step 6: Final answer
    x = 28,001.75

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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.