Home / 80,943.81-121,386.56-34,200.33

Finding the Fourth Proportional to 80,943.81, 121,386.56 and 34,200.33

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Solution

The fourth proportional to 80,943.81, 121,386.56 and 34,200.33 is: 51,288.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,943.81 : 121,386.56 = 34,200.33 : x
  2. Step 2: Convert to fraction form
    80,943.81/121,386.56 = 34,200.33/x
  3. Step 3: Cross multiply
    80,943.81x = 121,386.56 × 34,200.33
  4. Step 4: Simplify right side
    80,943.81x = 4,151,460,238.56
  5. Step 5: Solve for x
    x = 4,151,460,238.56/80,943.81
  6. Step 6: Final answer
    x = 51,288.17

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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.