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Finding the Fourth Proportional to 90,001.66, 135,006.12 and 30,843.32

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Solution

The fourth proportional to 90,001.66, 135,006.12 and 30,843.32 is: 46,266.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,001.66 : 135,006.12 = 30,843.32 : x
  2. Step 2: Convert to fraction form
    90,001.66/135,006.12 = 30,843.32/x
  3. Step 3: Cross multiply
    90,001.66x = 135,006.12 × 30,843.32
  4. Step 4: Simplify right side
    90,001.66x = 4,164,036,961.12
  5. Step 5: Solve for x
    x = 4,164,036,961.12/90,001.66
  6. Step 6: Final answer
    x = 46,266.22

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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.