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Finding the Fourth Proportional to 85,849.78, 118,531.40 and 53,633.46

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Solution

The fourth proportional to 85,849.78, 118,531.40 and 53,633.46 is: 74,050.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,849.78 : 118,531.40 = 53,633.46 : x
  2. Step 2: Convert to fraction form
    85,849.78/118,531.40 = 53,633.46/x
  3. Step 3: Cross multiply
    85,849.78x = 118,531.40 × 53,633.46
  4. Step 4: Simplify right side
    85,849.78x = 6,357,249,100.64
  5. Step 5: Solve for x
    x = 6,357,249,100.64/85,849.78
  6. Step 6: Final answer
    x = 74,050.85

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