Home / 90,623.36-125,070.05-54,833.11

Finding the Fourth Proportional to 90,623.36, 125,070.05 and 54,833.11

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Solution

The fourth proportional to 90,623.36, 125,070.05 and 54,833.11 is: 75,675.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,623.36 : 125,070.05 = 54,833.11 : x
  2. Step 2: Convert to fraction form
    90,623.36/125,070.05 = 54,833.11/x
  3. Step 3: Cross multiply
    90,623.36x = 125,070.05 × 54,833.11
  4. Step 4: Simplify right side
    90,623.36x = 6,857,978,909.84
  5. Step 5: Solve for x
    x = 6,857,978,909.84/90,623.36
  6. Step 6: Final answer
    x = 75,675.62

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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.