Home / 90,675.90-125,124.79-50,387.11

Finding the Fourth Proportional to 90,675.90, 125,124.79 and 50,387.11

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Solution

The fourth proportional to 90,675.90, 125,124.79 and 50,387.11 is: 69,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,675.90 : 125,124.79 = 50,387.11 : x
  2. Step 2: Convert to fraction form
    90,675.90/125,124.79 = 50,387.11/x
  3. Step 3: Cross multiply
    90,675.90x = 125,124.79 × 50,387.11
  4. Step 4: Simplify right side
    90,675.90x = 6,304,676,557.46
  5. Step 5: Solve for x
    x = 6,304,676,557.46/90,675.90
  6. Step 6: Final answer
    x = 69,529.79

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1.5x scale

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.