Home / 84,707.46-127,080.72-28,546.20

Finding the Fourth Proportional to 84,707.46, 127,080.72 and 28,546.20

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Solution

The fourth proportional to 84,707.46, 127,080.72 and 28,546.20 is: 42,825.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,707.46 : 127,080.72 = 28,546.20 : x
  2. Step 2: Convert to fraction form
    84,707.46/127,080.72 = 28,546.20/x
  3. Step 3: Cross multiply
    84,707.46x = 127,080.72 × 28,546.20
  4. Step 4: Simplify right side
    84,707.46x = 3,627,671,649.26
  5. Step 5: Solve for x
    x = 3,627,671,649.26/84,707.46
  6. Step 6: Final answer
    x = 42,825.88

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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.