Home / 87,840.39-121,219.75-47,554.48

Finding the Fourth Proportional to 87,840.39, 121,219.75 and 47,554.48

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Solution

The fourth proportional to 87,840.39, 121,219.75 and 47,554.48 is: 65,625.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,840.39 : 121,219.75 = 47,554.48 : x
  2. Step 2: Convert to fraction form
    87,840.39/121,219.75 = 47,554.48/x
  3. Step 3: Cross multiply
    87,840.39x = 121,219.75 × 47,554.48
  4. Step 4: Simplify right side
    87,840.39x = 5,764,542,284.36
  5. Step 5: Solve for x
    x = 5,764,542,284.36/87,840.39
  6. Step 6: Final answer
    x = 65,625.19

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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.