Home / 85,991.22-118,707.93-57,358.53

Finding the Fourth Proportional to 85,991.22, 118,707.93 and 57,358.53

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Solution

The fourth proportional to 85,991.22, 118,707.93 and 57,358.53 is: 79,181.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,991.22 : 118,707.93 = 57,358.53 : x
  2. Step 2: Convert to fraction form
    85,991.22/118,707.93 = 57,358.53/x
  3. Step 3: Cross multiply
    85,991.22x = 118,707.93 × 57,358.53
  4. Step 4: Simplify right side
    85,991.22x = 6,808,912,364.14
  5. Step 5: Solve for x
    x = 6,808,912,364.14/85,991.22
  6. Step 6: Final answer
    x = 79,181.48

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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.