Home / 90,648.32-125,087.36-52,410.31

Finding the Fourth Proportional to 90,648.32, 125,087.36 and 52,410.31

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Solution

The fourth proportional to 90,648.32, 125,087.36 and 52,410.31 is: 72,321.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,648.32 : 125,087.36 = 52,410.31 : x
  2. Step 2: Convert to fraction form
    90,648.32/125,087.36 = 52,410.31/x
  3. Step 3: Cross multiply
    90,648.32x = 125,087.36 × 52,410.31
  4. Step 4: Simplify right side
    90,648.32x = 6,555,866,739.91
  5. Step 5: Solve for x
    x = 6,555,866,739.91/90,648.32
  6. Step 6: Final answer
    x = 72,321.99

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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.