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Finding the Fourth Proportional to 60,774, 83,871.40 and 35,631.60

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Solution

The fourth proportional to 60,774, 83,871.40 and 35,631.60 is: 49,173.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,774 : 83,871.40 = 35,631.60 : x
  2. Step 2: Convert to fraction form
    60,774/83,871.40 = 35,631.60/x
  3. Step 3: Cross multiply
    60,774x = 83,871.40 × 35,631.60
  4. Step 4: Simplify right side
    60,774x = 2,988,472,176.24
  5. Step 5: Solve for x
    x = 2,988,472,176.24/60,774
  6. Step 6: Final answer
    x = 49,173.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.