Home / 84,919.47-127,398.05-28,754.88

Finding the Fourth Proportional to 84,919.47, 127,398.05 and 28,754.88

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Solution

The fourth proportional to 84,919.47, 127,398.05 and 28,754.88 is: 43,138.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,919.47 : 127,398.05 = 28,754.88 : x
  2. Step 2: Convert to fraction form
    84,919.47/127,398.05 = 28,754.88/x
  3. Step 3: Cross multiply
    84,919.47x = 127,398.05 × 28,754.88
  4. Step 4: Simplify right side
    84,919.47x = 3,663,315,496.21
  5. Step 5: Solve for x
    x = 3,663,315,496.21/84,919.47
  6. Step 6: Final answer
    x = 43,138.70

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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.