Home / 91,897.09-126,820.83-51,611.73

Finding the Fourth Proportional to 91,897.09, 126,820.83 and 51,611.73

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Solution

The fourth proportional to 91,897.09, 126,820.83 and 51,611.73 is: 71,225.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,897.09 : 126,820.83 = 51,611.73 : x
  2. Step 2: Convert to fraction form
    91,897.09/126,820.83 = 51,611.73/x
  3. Step 3: Cross multiply
    91,897.09x = 126,820.83 × 51,611.73
  4. Step 4: Simplify right side
    91,897.09x = 6,545,442,436.34
  5. Step 5: Solve for x
    x = 6,545,442,436.34/91,897.09
  6. Step 6: Final answer
    x = 71,225.79

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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.