Home / 84,428.16-126,551.12-54,867.21

Finding the Fourth Proportional to 84,428.16, 126,551.12 and 54,867.21

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Solution

The fourth proportional to 84,428.16, 126,551.12 and 54,867.21 is: 82,241.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,428.16 : 126,551.12 = 54,867.21 : x
  2. Step 2: Convert to fraction form
    84,428.16/126,551.12 = 54,867.21/x
  3. Step 3: Cross multiply
    84,428.16x = 126,551.12 × 54,867.21
  4. Step 4: Simplify right side
    84,428.16x = 6,943,506,602.44
  5. Step 5: Solve for x
    x = 6,943,506,602.44/84,428.16
  6. Step 6: Final answer
    x = 82,241.60

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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.