Home / 91,866.16-126,780.06-51,577.84

Finding the Fourth Proportional to 91,866.16, 126,780.06 and 51,577.84

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Solution

The fourth proportional to 91,866.16, 126,780.06 and 51,577.84 is: 71,180.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,866.16 : 126,780.06 = 51,577.84 : x
  2. Step 2: Convert to fraction form
    91,866.16/126,780.06 = 51,577.84/x
  3. Step 3: Cross multiply
    91,866.16x = 126,780.06 × 51,577.84
  4. Step 4: Simplify right side
    91,866.16x = 6,539,041,649.87
  5. Step 5: Solve for x
    x = 6,539,041,649.87/91,866.16
  6. Step 6: Final answer
    x = 71,180.09

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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.