Home / 85,621.76-127,907.61-61,725.37

Finding the Fourth Proportional to 85,621.76, 127,907.61 and 61,725.37

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Solution

The fourth proportional to 85,621.76, 127,907.61 and 61,725.37 is: 92,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,621.76 : 127,907.61 = 61,725.37 : x
  2. Step 2: Convert to fraction form
    85,621.76/127,907.61 = 61,725.37/x
  3. Step 3: Cross multiply
    85,621.76x = 127,907.61 × 61,725.37
  4. Step 4: Simplify right side
    85,621.76x = 7,895,143,913.53
  5. Step 5: Solve for x
    x = 7,895,143,913.53/85,621.76
  6. Step 6: Final answer
    x = 92,209.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.