Home / 83,218.64-124,822.20-30,618.32

Finding the Fourth Proportional to 83,218.64, 124,822.20 and 30,618.32

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Solution

The fourth proportional to 83,218.64, 124,822.20 and 30,618.32 is: 45,925.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,218.64 : 124,822.20 = 30,618.32 : x
  2. Step 2: Convert to fraction form
    83,218.64/124,822.20 = 30,618.32/x
  3. Step 3: Cross multiply
    83,218.64x = 124,822.20 × 30,618.32
  4. Step 4: Simplify right side
    83,218.64x = 3,821,846,062.70
  5. Step 5: Solve for x
    x = 3,821,846,062.70/83,218.64
  6. Step 6: Final answer
    x = 45,925.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.