Home / 90,648.88-125,103.36-52,935.28

Finding the Fourth Proportional to 90,648.88, 125,103.36 and 52,935.28

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Solution

The fourth proportional to 90,648.88, 125,103.36 and 52,935.28 is: 73,055.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,648.88 : 125,103.36 = 52,935.28 : x
  2. Step 2: Convert to fraction form
    90,648.88/125,103.36 = 52,935.28/x
  3. Step 3: Cross multiply
    90,648.88x = 125,103.36 × 52,935.28
  4. Step 4: Simplify right side
    90,648.88x = 6,622,381,390.54
  5. Step 5: Solve for x
    x = 6,622,381,390.54/90,648.88
  6. Step 6: Final answer
    x = 73,055.30

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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.