Home / 81,283.50-122,154.48-48,018.42

Finding the Fourth Proportional to 81,283.50, 122,154.48 and 48,018.42

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Solution

The fourth proportional to 81,283.50, 122,154.48 and 48,018.42 is: 72,163.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,283.50 : 122,154.48 = 48,018.42 : x
  2. Step 2: Convert to fraction form
    81,283.50/122,154.48 = 48,018.42/x
  3. Step 3: Cross multiply
    81,283.50x = 122,154.48 × 48,018.42
  4. Step 4: Simplify right side
    81,283.50x = 5,865,665,125.52
  5. Step 5: Solve for x
    x = 5,865,665,125.52/81,283.50
  6. Step 6: Final answer
    x = 72,163.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.