Home / 85,819.95-118,438.52-47,591.48

Finding the Fourth Proportional to 85,819.95, 118,438.52 and 47,591.48

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Solution

The fourth proportional to 85,819.95, 118,438.52 and 47,591.48 is: 65,680.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,819.95 : 118,438.52 = 47,591.48 : x
  2. Step 2: Convert to fraction form
    85,819.95/118,438.52 = 47,591.48/x
  3. Step 3: Cross multiply
    85,819.95x = 118,438.52 × 47,591.48
  4. Step 4: Simplify right side
    85,819.95x = 5,636,664,513.95
  5. Step 5: Solve for x
    x = 5,636,664,513.95/85,819.95
  6. Step 6: Final answer
    x = 65,680.12

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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.