Home / 90,987.30-125,557.29-50,143.32

Finding the Fourth Proportional to 90,987.30, 125,557.29 and 50,143.32

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Solution

The fourth proportional to 90,987.30, 125,557.29 and 50,143.32 is: 69,194.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,987.30 : 125,557.29 = 50,143.32 : x
  2. Step 2: Convert to fraction form
    90,987.30/125,557.29 = 50,143.32/x
  3. Step 3: Cross multiply
    90,987.30x = 125,557.29 × 50,143.32
  4. Step 4: Simplify right side
    90,987.30x = 6,295,859,370.80
  5. Step 5: Solve for x
    x = 6,295,859,370.80/90,987.30
  6. Step 6: Final answer
    x = 69,194.92

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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.