Home / 84,509.69-126,781.56-31,202.01

Finding the Fourth Proportional to 84,509.69, 126,781.56 and 31,202.01

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Solution

The fourth proportional to 84,509.69, 126,781.56 and 31,202.01 is: 46,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,509.69 : 126,781.56 = 31,202.01 : x
  2. Step 2: Convert to fraction form
    84,509.69/126,781.56 = 31,202.01/x
  3. Step 3: Cross multiply
    84,509.69x = 126,781.56 × 31,202.01
  4. Step 4: Simplify right side
    84,509.69x = 3,955,839,502.94
  5. Step 5: Solve for x
    x = 3,955,839,502.94/84,509.69
  6. Step 6: Final answer
    x = 46,809.30

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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.