Home / 83,783.36-125,642.28-31,164.20

Finding the Fourth Proportional to 83,783.36, 125,642.28 and 31,164.20

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Solution

The fourth proportional to 83,783.36, 125,642.28 and 31,164.20 is: 46,734.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,783.36 : 125,642.28 = 31,164.20 : x
  2. Step 2: Convert to fraction form
    83,783.36/125,642.28 = 31,164.20/x
  3. Step 3: Cross multiply
    83,783.36x = 125,642.28 × 31,164.20
  4. Step 4: Simplify right side
    83,783.36x = 3,915,541,142.38
  5. Step 5: Solve for x
    x = 3,915,541,142.38/83,783.36
  6. Step 6: Final answer
    x = 46,734.11

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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.