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Finding the Fourth Proportional to 89,992.80, 134,963.40 and 26,810.28

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Solution

The fourth proportional to 89,992.80, 134,963.40 and 26,810.28 is: 40,207.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,992.80 : 134,963.40 = 26,810.28 : x
  2. Step 2: Convert to fraction form
    89,992.80/134,963.40 = 26,810.28/x
  3. Step 3: Cross multiply
    89,992.80x = 134,963.40 × 26,810.28
  4. Step 4: Simplify right side
    89,992.80x = 3,618,406,543.75
  5. Step 5: Solve for x
    x = 3,618,406,543.75/89,992.80
  6. Step 6: Final answer
    x = 40,207.73

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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.