Home / 85,881.96-118,526.82-57,200.04

Finding the Fourth Proportional to 85,881.96, 118,526.82 and 57,200.04

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Solution

The fourth proportional to 85,881.96, 118,526.82 and 57,200.04 is: 78,942.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,881.96 : 118,526.82 = 57,200.04 : x
  2. Step 2: Convert to fraction form
    85,881.96/118,526.82 = 57,200.04/x
  3. Step 3: Cross multiply
    85,881.96x = 118,526.82 × 57,200.04
  4. Step 4: Simplify right side
    85,881.96x = 6,779,738,845.07
  5. Step 5: Solve for x
    x = 6,779,738,845.07/85,881.96
  6. Step 6: Final answer
    x = 78,942.53

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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.