Home / 90,637.44-125,113.35-77,839.23

Finding the Fourth Proportional to 90,637.44, 125,113.35 and 77,839.23

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Solution

The fourth proportional to 90,637.44, 125,113.35 and 77,839.23 is: 107,447.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,637.44 : 125,113.35 = 77,839.23 : x
  2. Step 2: Convert to fraction form
    90,637.44/125,113.35 = 77,839.23/x
  3. Step 3: Cross multiply
    90,637.44x = 125,113.35 × 77,839.23
  4. Step 4: Simplify right side
    90,637.44x = 9,738,726,826.72
  5. Step 5: Solve for x
    x = 9,738,726,826.72/90,637.44
  6. Step 6: Final answer
    x = 107,447.06

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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.