Home / 83,425.64-125,142.30-30,825.32

Finding the Fourth Proportional to 83,425.64, 125,142.30 and 30,825.32

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Solution

The fourth proportional to 83,425.64, 125,142.30 and 30,825.32 is: 46,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,425.64 : 125,142.30 = 30,825.32 : x
  2. Step 2: Convert to fraction form
    83,425.64/125,142.30 = 30,825.32/x
  3. Step 3: Cross multiply
    83,425.64x = 125,142.30 × 30,825.32
  4. Step 4: Simplify right side
    83,425.64x = 3,857,551,443.04
  5. Step 5: Solve for x
    x = 3,857,551,443.04/83,425.64
  6. Step 6: Final answer
    x = 46,239.40

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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.