Home / 90,514.10-135,687.08-48,423.23

Finding the Fourth Proportional to 90,514.10, 135,687.08 and 48,423.23

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Solution

The fourth proportional to 90,514.10, 135,687.08 and 48,423.23 is: 72,589.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,514.10 : 135,687.08 = 48,423.23 : x
  2. Step 2: Convert to fraction form
    90,514.10/135,687.08 = 48,423.23/x
  3. Step 3: Cross multiply
    90,514.10x = 135,687.08 × 48,423.23
  4. Step 4: Simplify right side
    90,514.10x = 6,570,406,682.87
  5. Step 5: Solve for x
    x = 6,570,406,682.87/90,514.10
  6. Step 6: Final answer
    x = 72,589.87

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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.