Home / 90,681.25-136,021.69-24,121.46

Finding the Fourth Proportional to 90,681.25, 136,021.69 and 24,121.46

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Solution

The fourth proportional to 90,681.25, 136,021.69 and 24,121.46 is: 36,182.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,681.25 : 136,021.69 = 24,121.46 : x
  2. Step 2: Convert to fraction form
    90,681.25/136,021.69 = 24,121.46/x
  3. Step 3: Cross multiply
    90,681.25x = 136,021.69 × 24,121.46
  4. Step 4: Simplify right side
    90,681.25x = 3,281,040,953.75
  5. Step 5: Solve for x
    x = 3,281,040,953.75/90,681.25
  6. Step 6: Final answer
    x = 36,182.13

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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.