Home / 81,510.75-122,277.06-34,774.56

Finding the Fourth Proportional to 81,510.75, 122,277.06 and 34,774.56

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Solution

The fourth proportional to 81,510.75, 122,277.06 and 34,774.56 is: 52,166.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,510.75 : 122,277.06 = 34,774.56 : x
  2. Step 2: Convert to fraction form
    81,510.75/122,277.06 = 34,774.56/x
  3. Step 3: Cross multiply
    81,510.75x = 122,277.06 × 34,774.56
  4. Step 4: Simplify right side
    81,510.75x = 4,252,130,959.59
  5. Step 5: Solve for x
    x = 4,252,130,959.59/81,510.75
  6. Step 6: Final answer
    x = 52,166.51

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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.