Home / 84,274.02-126,398.07-28,115.10

Finding the Fourth Proportional to 84,274.02, 126,398.07 and 28,115.10

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Solution

The fourth proportional to 84,274.02, 126,398.07 and 28,115.10 is: 42,168.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,274.02 : 126,398.07 = 28,115.10 : x
  2. Step 2: Convert to fraction form
    84,274.02/126,398.07 = 28,115.10/x
  3. Step 3: Cross multiply
    84,274.02x = 126,398.07 × 28,115.10
  4. Step 4: Simplify right side
    84,274.02x = 3,553,694,377.86
  5. Step 5: Solve for x
    x = 3,553,694,377.86/84,274.02
  6. Step 6: Final answer
    x = 42,168.33

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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.