Home / 85,890.68-118,528.94-47,656.04

Finding the Fourth Proportional to 85,890.68, 118,528.94 and 47,656.04

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Solution

The fourth proportional to 85,890.68, 118,528.94 and 47,656.04 is: 65,765.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,890.68 : 118,528.94 = 47,656.04 : x
  2. Step 2: Convert to fraction form
    85,890.68/118,528.94 = 47,656.04/x
  3. Step 3: Cross multiply
    85,890.68x = 118,528.94 × 47,656.04
  4. Step 4: Simplify right side
    85,890.68x = 5,648,619,667.52
  5. Step 5: Solve for x
    x = 5,648,619,667.52/85,890.68
  6. Step 6: Final answer
    x = 65,765.23

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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.