Home / 87,814.23-121,101.39-58,293.76

Finding the Fourth Proportional to 87,814.23, 121,101.39 and 58,293.76

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Solution

The fourth proportional to 87,814.23, 121,101.39 and 58,293.76 is: 80,390.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,814.23 : 121,101.39 = 58,293.76 : x
  2. Step 2: Convert to fraction form
    87,814.23/121,101.39 = 58,293.76/x
  3. Step 3: Cross multiply
    87,814.23x = 121,101.39 × 58,293.76
  4. Step 4: Simplify right side
    87,814.23x = 7,059,455,364.33
  5. Step 5: Solve for x
    x = 7,059,455,364.33/87,814.23
  6. Step 6: Final answer
    x = 80,390.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.