Home / 84,712.88-127,036.92-28,537.76

Finding the Fourth Proportional to 84,712.88, 127,036.92 and 28,537.76

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Solution

The fourth proportional to 84,712.88, 127,036.92 and 28,537.76 is: 42,795.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,712.88 : 127,036.92 = 28,537.76 : x
  2. Step 2: Convert to fraction form
    84,712.88/127,036.92 = 28,537.76/x
  3. Step 3: Cross multiply
    84,712.88x = 127,036.92 × 28,537.76
  4. Step 4: Simplify right side
    84,712.88x = 3,625,349,134.10
  5. Step 5: Solve for x
    x = 3,625,349,134.10/84,712.88
  6. Step 6: Final answer
    x = 42,795.73

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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.