Home / 84,677.12-126,913.78-31,326.56

Finding the Fourth Proportional to 84,677.12, 126,913.78 and 31,326.56

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Solution

The fourth proportional to 84,677.12, 126,913.78 and 31,326.56 is: 46,952.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,677.12 : 126,913.78 = 31,326.56 : x
  2. Step 2: Convert to fraction form
    84,677.12/126,913.78 = 31,326.56/x
  3. Step 3: Cross multiply
    84,677.12x = 126,913.78 × 31,326.56
  4. Step 4: Simplify right side
    84,677.12x = 3,975,772,144.00
  5. Step 5: Solve for x
    x = 3,975,772,144.00/84,677.12
  6. Step 6: Final answer
    x = 46,952.14

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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.