Home / 84,335.04-126,459.56-28,154.96

Finding the Fourth Proportional to 84,335.04, 126,459.56 and 28,154.96

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Solution

The fourth proportional to 84,335.04, 126,459.56 and 28,154.96 is: 42,218.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,335.04 : 126,459.56 = 28,154.96 : x
  2. Step 2: Convert to fraction form
    84,335.04/126,459.56 = 28,154.96/x
  3. Step 3: Cross multiply
    84,335.04x = 126,459.56 × 28,154.96
  4. Step 4: Simplify right side
    84,335.04x = 3,560,463,080.35
  5. Step 5: Solve for x
    x = 3,560,463,080.35/84,335.04
  6. Step 6: Final answer
    x = 42,218.08

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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.