Home / 83,790.60-115,585.20-53,107.44

Finding the Fourth Proportional to 83,790.60, 115,585.20 and 53,107.44

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Solution

The fourth proportional to 83,790.60, 115,585.20 and 53,107.44 is: 73,259.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,790.60 : 115,585.20 = 53,107.44 : x
  2. Step 2: Convert to fraction form
    83,790.60/115,585.20 = 53,107.44/x
  3. Step 3: Cross multiply
    83,790.60x = 115,585.20 × 53,107.44
  4. Step 4: Simplify right side
    83,790.60x = 6,138,434,073.89
  5. Step 5: Solve for x
    x = 6,138,434,073.89/83,790.60
  6. Step 6: Final answer
    x = 73,259.22

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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.