Home / 91,434.07-137,016.92-51,530.73

Finding the Fourth Proportional to 91,434.07, 137,016.92 and 51,530.73

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Solution

The fourth proportional to 91,434.07, 137,016.92 and 51,530.73 is: 77,220.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,434.07 : 137,016.92 = 51,530.73 : x
  2. Step 2: Convert to fraction form
    91,434.07/137,016.92 = 51,530.73/x
  3. Step 3: Cross multiply
    91,434.07x = 137,016.92 × 51,530.73
  4. Step 4: Simplify right side
    91,434.07x = 7,060,582,005.82
  5. Step 5: Solve for x
    x = 7,060,582,005.82/91,434.07
  6. Step 6: Final answer
    x = 77,220.48

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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.