Home / 84,264.40-126,354.24-28,084.81

Finding the Fourth Proportional to 84,264.40, 126,354.24 and 28,084.81

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Solution

The fourth proportional to 84,264.40, 126,354.24 and 28,084.81 is: 42,113.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,264.40 : 126,354.24 = 28,084.81 : x
  2. Step 2: Convert to fraction form
    84,264.40/126,354.24 = 28,084.81/x
  3. Step 3: Cross multiply
    84,264.40x = 126,354.24 × 28,084.81
  4. Step 4: Simplify right side
    84,264.40x = 3,548,634,823.09
  5. Step 5: Solve for x
    x = 3,548,634,823.09/84,264.40
  6. Step 6: Final answer
    x = 42,113.10

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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.