Home / 90,669.07-125,134.82-54,859.38

Finding the Fourth Proportional to 90,669.07, 125,134.82 and 54,859.38

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Solution

The fourth proportional to 90,669.07, 125,134.82 and 54,859.38 is: 75,712.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,669.07 : 125,134.82 = 54,859.38 : x
  2. Step 2: Convert to fraction form
    90,669.07/125,134.82 = 54,859.38/x
  3. Step 3: Cross multiply
    90,669.07x = 125,134.82 × 54,859.38
  4. Step 4: Simplify right side
    90,669.07x = 6,864,818,412.37
  5. Step 5: Solve for x
    x = 6,864,818,412.37/90,669.07
  6. Step 6: Final answer
    x = 75,712.90

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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.