Home / 85,591.04-118,121.10-47,865.56

Finding the Fourth Proportional to 85,591.04, 118,121.10 and 47,865.56

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Solution

The fourth proportional to 85,591.04, 118,121.10 and 47,865.56 is: 66,057.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,591.04 : 118,121.10 = 47,865.56 : x
  2. Step 2: Convert to fraction form
    85,591.04/118,121.10 = 47,865.56/x
  3. Step 3: Cross multiply
    85,591.04x = 118,121.10 × 47,865.56
  4. Step 4: Simplify right side
    85,591.04x = 5,653,932,599.32
  5. Step 5: Solve for x
    x = 5,653,932,599.32/85,591.04
  6. Step 6: Final answer
    x = 66,057.53

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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.