Home / 83,850.57-125,775.86-21,521.07

Finding the Fourth Proportional to 83,850.57, 125,775.86 and 21,521.07

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Solution

The fourth proportional to 83,850.57, 125,775.86 and 21,521.07 is: 32,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,850.57 : 125,775.86 = 21,521.07 : x
  2. Step 2: Convert to fraction form
    83,850.57/125,775.86 = 21,521.07/x
  3. Step 3: Cross multiply
    83,850.57x = 125,775.86 × 21,521.07
  4. Step 4: Simplify right side
    83,850.57x = 2,706,830,979.76
  5. Step 5: Solve for x
    x = 2,706,830,979.76/83,850.57
  6. Step 6: Final answer
    x = 32,281.61

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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.