Home / 90,578.40-124,995.92-50,290.88

Finding the Fourth Proportional to 90,578.40, 124,995.92 and 50,290.88

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Solution

The fourth proportional to 90,578.40, 124,995.92 and 50,290.88 is: 69,400.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,578.40 : 124,995.92 = 50,290.88 : x
  2. Step 2: Convert to fraction form
    90,578.40/124,995.92 = 50,290.88/x
  3. Step 3: Cross multiply
    90,578.40x = 124,995.92 × 50,290.88
  4. Step 4: Simplify right side
    90,578.40x = 6,286,154,813.21
  5. Step 5: Solve for x
    x = 6,286,154,813.21/90,578.40
  6. Step 6: Final answer
    x = 69,400.15

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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.