Home / 88,136.55-121,628.52-47,850.30

Finding the Fourth Proportional to 88,136.55, 121,628.52 and 47,850.30

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Solution

The fourth proportional to 88,136.55, 121,628.52 and 47,850.30 is: 66,033.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,136.55 : 121,628.52 = 47,850.30 : x
  2. Step 2: Convert to fraction form
    88,136.55/121,628.52 = 47,850.30/x
  3. Step 3: Cross multiply
    88,136.55x = 121,628.52 × 47,850.30
  4. Step 4: Simplify right side
    88,136.55x = 5,819,961,170.56
  5. Step 5: Solve for x
    x = 5,819,961,170.56/88,136.55
  6. Step 6: Final answer
    x = 66,033.46

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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.