Home / 90,681.24-136,021.70-24,121.44

Finding the Fourth Proportional to 90,681.24, 136,021.70 and 24,121.44

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Solution

The fourth proportional to 90,681.24, 136,021.70 and 24,121.44 is: 36,182.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,681.24 : 136,021.70 = 24,121.44 : x
  2. Step 2: Convert to fraction form
    90,681.24/136,021.70 = 24,121.44/x
  3. Step 3: Cross multiply
    90,681.24x = 136,021.70 × 24,121.44
  4. Step 4: Simplify right side
    90,681.24x = 3,281,039,275.25
  5. Step 5: Solve for x
    x = 3,281,039,275.25/90,681.24
  6. Step 6: Final answer
    x = 36,182.12

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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.