Home / 91,212.28-136,596.07-51,649.45

Finding the Fourth Proportional to 91,212.28, 136,596.07 and 51,649.45

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Solution

The fourth proportional to 91,212.28, 136,596.07 and 51,649.45 is: 77,348.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,212.28 : 136,596.07 = 51,649.45 : x
  2. Step 2: Convert to fraction form
    91,212.28/136,596.07 = 51,649.45/x
  3. Step 3: Cross multiply
    91,212.28x = 136,596.07 × 51,649.45
  4. Step 4: Simplify right side
    91,212.28x = 7,055,111,610.73
  5. Step 5: Solve for x
    x = 7,055,111,610.73/91,212.28
  6. Step 6: Final answer
    x = 77,348.27

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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.