Home / 91,856.47-126,763.89-51,571.32

Finding the Fourth Proportional to 91,856.47, 126,763.89 and 51,571.32

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Solution

The fourth proportional to 91,856.47, 126,763.89 and 51,571.32 is: 71,169.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,856.47 : 126,763.89 = 51,571.32 : x
  2. Step 2: Convert to fraction form
    91,856.47/126,763.89 = 51,571.32/x
  3. Step 3: Cross multiply
    91,856.47x = 126,763.89 × 51,571.32
  4. Step 4: Simplify right side
    91,856.47x = 6,537,381,135.63
  5. Step 5: Solve for x
    x = 6,537,381,135.63/91,856.47
  6. Step 6: Final answer
    x = 71,169.53

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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.