Home / 88,281.21-121,830.42-47,997.69

Finding the Fourth Proportional to 88,281.21, 121,830.42 and 47,997.69

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Solution

The fourth proportional to 88,281.21, 121,830.42 and 47,997.69 is: 66,238.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,281.21 : 121,830.42 = 47,997.69 : x
  2. Step 2: Convert to fraction form
    88,281.21/121,830.42 = 47,997.69/x
  3. Step 3: Cross multiply
    88,281.21x = 121,830.42 × 47,997.69
  4. Step 4: Simplify right side
    88,281.21x = 5,847,578,731.73
  5. Step 5: Solve for x
    x = 5,847,578,731.73/88,281.21
  6. Step 6: Final answer
    x = 66,238.09

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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.