Home / 84,254.04-126,348.12-42,121.08

Finding the Fourth Proportional to 84,254.04, 126,348.12 and 42,121.08

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Solution

The fourth proportional to 84,254.04, 126,348.12 and 42,121.08 is: 63,165.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,254.04 : 126,348.12 = 42,121.08 : x
  2. Step 2: Convert to fraction form
    84,254.04/126,348.12 = 42,121.08/x
  3. Step 3: Cross multiply
    84,254.04x = 126,348.12 × 42,121.08
  4. Step 4: Simplify right side
    84,254.04x = 5,321,919,270.37
  5. Step 5: Solve for x
    x = 5,321,919,270.37/84,254.04
  6. Step 6: Final answer
    x = 63,165.15

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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.