Home / 83,835.52-115,740.86-55,579.48

Finding the Fourth Proportional to 83,835.52, 115,740.86 and 55,579.48

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Solution

The fourth proportional to 83,835.52, 115,740.86 and 55,579.48 is: 76,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,835.52 : 115,740.86 = 55,579.48 : x
  2. Step 2: Convert to fraction form
    83,835.52/115,740.86 = 55,579.48/x
  3. Step 3: Cross multiply
    83,835.52x = 115,740.86 × 55,579.48
  4. Step 4: Simplify right side
    83,835.52x = 6,432,816,813.55
  5. Step 5: Solve for x
    x = 6,432,816,813.55/83,835.52
  6. Step 6: Final answer
    x = 76,731.40

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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.