Home / 83,557.51-125,443.14-71,786.59

Finding the Fourth Proportional to 83,557.51, 125,443.14 and 71,786.59

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Solution

The fourth proportional to 83,557.51, 125,443.14 and 71,786.59 is: 107,771.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,557.51 : 125,443.14 = 71,786.59 : x
  2. Step 2: Convert to fraction form
    83,557.51/125,443.14 = 71,786.59/x
  3. Step 3: Cross multiply
    83,557.51x = 125,443.14 × 71,786.59
  4. Step 4: Simplify right side
    83,557.51x = 9,005,135,259.49
  5. Step 5: Solve for x
    x = 9,005,135,259.49/83,557.51
  6. Step 6: Final answer
    x = 107,771.70

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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.