Home / 84,284.57-126,445.31-31,694.05

Finding the Fourth Proportional to 84,284.57, 126,445.31 and 31,694.05

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Solution

The fourth proportional to 84,284.57, 126,445.31 and 31,694.05 is: 47,548.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,284.57 : 126,445.31 = 31,694.05 : x
  2. Step 2: Convert to fraction form
    84,284.57/126,445.31 = 31,694.05/x
  3. Step 3: Cross multiply
    84,284.57x = 126,445.31 × 31,694.05
  4. Step 4: Simplify right side
    84,284.57x = 4,007,563,345.18
  5. Step 5: Solve for x
    x = 4,007,563,345.18/84,284.57
  6. Step 6: Final answer
    x = 47,548.01

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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.