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Finding the Fourth Proportional to 85,998.22, 118,675.32 and 47,756.80

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Solution

The fourth proportional to 85,998.22, 118,675.32 and 47,756.80 is: 65,903.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,998.22 : 118,675.32 = 47,756.80 : x
  2. Step 2: Convert to fraction form
    85,998.22/118,675.32 = 47,756.80/x
  3. Step 3: Cross multiply
    85,998.22x = 118,675.32 × 47,756.80
  4. Step 4: Simplify right side
    85,998.22x = 5,667,553,522.18
  5. Step 5: Solve for x
    x = 5,667,553,522.18/85,998.22
  6. Step 6: Final answer
    x = 65,903.15

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1.5x scale

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.