Home / 91,405.14-126,145.53-51,122.66

Finding the Fourth Proportional to 91,405.14, 126,145.53 and 51,122.66

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Solution

The fourth proportional to 91,405.14, 126,145.53 and 51,122.66 is: 70,552.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,405.14 : 126,145.53 = 51,122.66 : x
  2. Step 2: Convert to fraction form
    91,405.14/126,145.53 = 51,122.66/x
  3. Step 3: Cross multiply
    91,405.14x = 126,145.53 × 51,122.66
  4. Step 4: Simplify right side
    91,405.14x = 6,448,894,409.98
  5. Step 5: Solve for x
    x = 6,448,894,409.98/91,405.14
  6. Step 6: Final answer
    x = 70,552.86

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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.