Home / 90,747.57-136,094.01-43,338.21

Finding the Fourth Proportional to 90,747.57, 136,094.01 and 43,338.21

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Solution

The fourth proportional to 90,747.57, 136,094.01 and 43,338.21 is: 64,994.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,747.57 : 136,094.01 = 43,338.21 : x
  2. Step 2: Convert to fraction form
    90,747.57/136,094.01 = 43,338.21/x
  3. Step 3: Cross multiply
    90,747.57x = 136,094.01 × 43,338.21
  4. Step 4: Simplify right side
    90,747.57x = 5,898,070,785.12
  5. Step 5: Solve for x
    x = 5,898,070,785.12/90,747.57
  6. Step 6: Final answer
    x = 64,994.26

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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.