Home / 88,352.64-121,930-50,634.18

Finding the Fourth Proportional to 88,352.64, 121,930 and 50,634.18

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Solution

The fourth proportional to 88,352.64, 121,930 and 50,634.18 is: 69,877.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,352.64 : 121,930 = 50,634.18 : x
  2. Step 2: Convert to fraction form
    88,352.64/121,930 = 50,634.18/x
  3. Step 3: Cross multiply
    88,352.64x = 121,930 × 50,634.18
  4. Step 4: Simplify right side
    88,352.64x = 6,173,825,567.40
  5. Step 5: Solve for x
    x = 6,173,825,567.40/88,352.64
  6. Step 6: Final answer
    x = 69,877.09

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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.