Home / 84,284.05-126,444.54-31,693.54

Finding the Fourth Proportional to 84,284.05, 126,444.54 and 31,693.54

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Solution

The fourth proportional to 84,284.05, 126,444.54 and 31,693.54 is: 47,547.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,284.05 : 126,444.54 = 31,693.54 : x
  2. Step 2: Convert to fraction form
    84,284.05/126,444.54 = 31,693.54/x
  3. Step 3: Cross multiply
    84,284.05x = 126,444.54 × 31,693.54
  4. Step 4: Simplify right side
    84,284.05x = 4,007,475,086.27
  5. Step 5: Solve for x
    x = 4,007,475,086.27/84,284.05
  6. Step 6: Final answer
    x = 47,547.25

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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.