Home / 90,735.69-125,216.71-49,901.43

Finding the Fourth Proportional to 90,735.69, 125,216.71 and 49,901.43

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Solution

The fourth proportional to 90,735.69, 125,216.71 and 49,901.43 is: 68,864.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,735.69 : 125,216.71 = 49,901.43 : x
  2. Step 2: Convert to fraction form
    90,735.69/125,216.71 = 49,901.43/x
  3. Step 3: Cross multiply
    90,735.69x = 125,216.71 × 49,901.43
  4. Step 4: Simplify right side
    90,735.69x = 6,248,492,888.90
  5. Step 5: Solve for x
    x = 6,248,492,888.90/90,735.69
  6. Step 6: Final answer
    x = 68,864.78

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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.