Home / 83,516.63-125,282.23-21,187.13

Finding the Fourth Proportional to 83,516.63, 125,282.23 and 21,187.13

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Solution

The fourth proportional to 83,516.63, 125,282.23 and 21,187.13 is: 31,782.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,516.63 : 125,282.23 = 21,187.13 : x
  2. Step 2: Convert to fraction form
    83,516.63/125,282.23 = 21,187.13/x
  3. Step 3: Cross multiply
    83,516.63x = 125,282.23 × 21,187.13
  4. Step 4: Simplify right side
    83,516.63x = 2,654,370,214.32
  5. Step 5: Solve for x
    x = 2,654,370,214.32/83,516.63
  6. Step 6: Final answer
    x = 31,782.54

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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.