Home / 85,968.56-118,606.20-56,177.84

Finding the Fourth Proportional to 85,968.56, 118,606.20 and 56,177.84

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Solution

The fourth proportional to 85,968.56, 118,606.20 and 56,177.84 is: 77,505.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,968.56 : 118,606.20 = 56,177.84 : x
  2. Step 2: Convert to fraction form
    85,968.56/118,606.20 = 56,177.84/x
  3. Step 3: Cross multiply
    85,968.56x = 118,606.20 × 56,177.84
  4. Step 4: Simplify right side
    85,968.56x = 6,663,040,126.61
  5. Step 5: Solve for x
    x = 6,663,040,126.61/85,968.56
  6. Step 6: Final answer
    x = 77,505.55

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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.