Home / 90,680.84-125,139.81-50,394.47

Finding the Fourth Proportional to 90,680.84, 125,139.81 and 50,394.47

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Solution

The fourth proportional to 90,680.84, 125,139.81 and 50,394.47 is: 69,544.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,680.84 : 125,139.81 = 50,394.47 : x
  2. Step 2: Convert to fraction form
    90,680.84/125,139.81 = 50,394.47/x
  3. Step 3: Cross multiply
    90,680.84x = 125,139.81 × 50,394.47
  4. Step 4: Simplify right side
    90,680.84x = 6,306,354,713.70
  5. Step 5: Solve for x
    x = 6,306,354,713.70/90,680.84
  6. Step 6: Final answer
    x = 69,544.52

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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.