Home / 90,269.04-135,325.80-43,554.72

Finding the Fourth Proportional to 90,269.04, 135,325.80 and 43,554.72

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Solution

The fourth proportional to 90,269.04, 135,325.80 and 43,554.72 is: 65,294.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,269.04 : 135,325.80 = 43,554.72 : x
  2. Step 2: Convert to fraction form
    90,269.04/135,325.80 = 43,554.72/x
  3. Step 3: Cross multiply
    90,269.04x = 135,325.80 × 43,554.72
  4. Step 4: Simplify right side
    90,269.04x = 5,894,077,327.78
  5. Step 5: Solve for x
    x = 5,894,077,327.78/90,269.04
  6. Step 6: Final answer
    x = 65,294.56

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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.