Home / 91,763.64-126,618.48-54,045.36

Finding the Fourth Proportional to 91,763.64, 126,618.48 and 54,045.36

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Solution

The fourth proportional to 91,763.64, 126,618.48 and 54,045.36 is: 74,573.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,763.64 : 126,618.48 = 54,045.36 : x
  2. Step 2: Convert to fraction form
    91,763.64/126,618.48 = 54,045.36/x
  3. Step 3: Cross multiply
    91,763.64x = 126,618.48 × 54,045.36
  4. Step 4: Simplify right side
    91,763.64x = 6,843,141,334.25
  5. Step 5: Solve for x
    x = 6,843,141,334.25/91,763.64
  6. Step 6: Final answer
    x = 74,573.56

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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.