Home / 79,866.12-119,802.23-20,701.97

Finding the Fourth Proportional to 79,866.12, 119,802.23 and 20,701.97

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Solution

The fourth proportional to 79,866.12, 119,802.23 and 20,701.97 is: 31,053.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,866.12 : 119,802.23 = 20,701.97 : x
  2. Step 2: Convert to fraction form
    79,866.12/119,802.23 = 20,701.97/x
  3. Step 3: Cross multiply
    79,866.12x = 119,802.23 × 20,701.97
  4. Step 4: Simplify right side
    79,866.12x = 2,480,141,468.87
  5. Step 5: Solve for x
    x = 2,480,141,468.87/79,866.12
  6. Step 6: Final answer
    x = 31,053.74

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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.