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Finding the Fourth Proportional to 85,891.52, 128,822.24 and 22,712.24

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Solution

The fourth proportional to 85,891.52, 128,822.24 and 22,712.24 is: 34,064.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,891.52 : 128,822.24 = 22,712.24 : x
  2. Step 2: Convert to fraction form
    85,891.52/128,822.24 = 22,712.24/x
  3. Step 3: Cross multiply
    85,891.52x = 128,822.24 × 22,712.24
  4. Step 4: Simplify right side
    85,891.52x = 2,925,841,632.22
  5. Step 5: Solve for x
    x = 2,925,841,632.22/85,891.52
  6. Step 6: Final answer
    x = 34,064.38

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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.