Home / 87,949.08-121,362.48-51,646.68

Finding the Fourth Proportional to 87,949.08, 121,362.48 and 51,646.68

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Solution

The fourth proportional to 87,949.08, 121,362.48 and 51,646.68 is: 71,268.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,949.08 : 121,362.48 = 51,646.68 : x
  2. Step 2: Convert to fraction form
    87,949.08/121,362.48 = 51,646.68/x
  3. Step 3: Cross multiply
    87,949.08x = 121,362.48 × 51,646.68
  4. Step 4: Simplify right side
    87,949.08x = 6,267,969,168.57
  5. Step 5: Solve for x
    x = 6,267,969,168.57/87,949.08
  6. Step 6: Final answer
    x = 71,268.16

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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.