Home / 91,071.30-125,657.01-55,260.48

Finding the Fourth Proportional to 91,071.30, 125,657.01 and 55,260.48

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Solution

The fourth proportional to 91,071.30, 125,657.01 and 55,260.48 is: 76,246.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,071.30 : 125,657.01 = 55,260.48 : x
  2. Step 2: Convert to fraction form
    91,071.30/125,657.01 = 55,260.48/x
  3. Step 3: Cross multiply
    91,071.30x = 125,657.01 × 55,260.48
  4. Step 4: Simplify right side
    91,071.30x = 6,943,866,687.96
  5. Step 5: Solve for x
    x = 6,943,866,687.96/91,071.30
  6. Step 6: Final answer
    x = 76,246.49

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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.