Home / 83,338.32-115,009.63-45,612.57

Finding the Fourth Proportional to 83,338.32, 115,009.63 and 45,612.57

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Solution

The fourth proportional to 83,338.32, 115,009.63 and 45,612.57 is: 62,946.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,338.32 : 115,009.63 = 45,612.57 : x
  2. Step 2: Convert to fraction form
    83,338.32/115,009.63 = 45,612.57/x
  3. Step 3: Cross multiply
    83,338.32x = 115,009.63 × 45,612.57
  4. Step 4: Simplify right side
    83,338.32x = 5,245,884,799.05
  5. Step 5: Solve for x
    x = 5,245,884,799.05/83,338.32
  6. Step 6: Final answer
    x = 62,946.85

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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.