Home / 84,022.64-126,019.24-31,421.24

Finding the Fourth Proportional to 84,022.64, 126,019.24 and 31,421.24

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Solution

The fourth proportional to 84,022.64, 126,019.24 and 31,421.24 is: 47,126.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,022.64 : 126,019.24 = 31,421.24 : x
  2. Step 2: Convert to fraction form
    84,022.64/126,019.24 = 31,421.24/x
  3. Step 3: Cross multiply
    84,022.64x = 126,019.24 × 31,421.24
  4. Step 4: Simplify right side
    84,022.64x = 3,959,680,784.66
  5. Step 5: Solve for x
    x = 3,959,680,784.66/84,022.64
  6. Step 6: Final answer
    x = 47,126.36

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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.