Home / 81,196.13-121,779.81-22,036.40

Finding the Fourth Proportional to 81,196.13, 121,779.81 and 22,036.40

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Solution

The fourth proportional to 81,196.13, 121,779.81 and 22,036.40 is: 33,050.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,196.13 : 121,779.81 = 22,036.40 : x
  2. Step 2: Convert to fraction form
    81,196.13/121,779.81 = 22,036.40/x
  3. Step 3: Cross multiply
    81,196.13x = 121,779.81 × 22,036.40
  4. Step 4: Simplify right side
    81,196.13x = 2,683,587,996.18
  5. Step 5: Solve for x
    x = 2,683,587,996.18/81,196.13
  6. Step 6: Final answer
    x = 33,050.69

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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.