Home / 87,969.50-121,394.96-52,138.23

Finding the Fourth Proportional to 87,969.50, 121,394.96 and 52,138.23

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Solution

The fourth proportional to 87,969.50, 121,394.96 and 52,138.23 is: 71,949.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,969.50 : 121,394.96 = 52,138.23 : x
  2. Step 2: Convert to fraction form
    87,969.50/121,394.96 = 52,138.23/x
  3. Step 3: Cross multiply
    87,969.50x = 121,394.96 × 52,138.23
  4. Step 4: Simplify right side
    87,969.50x = 6,329,318,084.63
  5. Step 5: Solve for x
    x = 6,329,318,084.63/87,969.50
  6. Step 6: Final answer
    x = 71,949.01

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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.