Home / 85,630.57-118,170.40-47,392.75

Finding the Fourth Proportional to 85,630.57, 118,170.40 and 47,392.75

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Solution

The fourth proportional to 85,630.57, 118,170.40 and 47,392.75 is: 65,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,630.57 : 118,170.40 = 47,392.75 : x
  2. Step 2: Convert to fraction form
    85,630.57/118,170.40 = 47,392.75/x
  3. Step 3: Cross multiply
    85,630.57x = 118,170.40 × 47,392.75
  4. Step 4: Simplify right side
    85,630.57x = 5,600,419,810.69
  5. Step 5: Solve for x
    x = 5,600,419,810.69/85,630.57
  6. Step 6: Final answer
    x = 65,402.11

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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.