Home / 84,761.71-126,987.54-39,700.36

Finding the Fourth Proportional to 84,761.71, 126,987.54 and 39,700.36

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Solution

The fourth proportional to 84,761.71, 126,987.54 and 39,700.36 is: 59,477.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,761.71 : 126,987.54 = 39,700.36 : x
  2. Step 2: Convert to fraction form
    84,761.71/126,987.54 = 39,700.36/x
  3. Step 3: Cross multiply
    84,761.71x = 126,987.54 × 39,700.36
  4. Step 4: Simplify right side
    84,761.71x = 5,041,451,053.51
  5. Step 5: Solve for x
    x = 5,041,451,053.51/84,761.71
  6. Step 6: Final answer
    x = 59,477.93

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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.