Home / 90,487.42-124,872.93-50,201.98

Finding the Fourth Proportional to 90,487.42, 124,872.93 and 50,201.98

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Solution

The fourth proportional to 90,487.42, 124,872.93 and 50,201.98 is: 69,278.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,487.42 : 124,872.93 = 50,201.98 : x
  2. Step 2: Convert to fraction form
    90,487.42/124,872.93 = 50,201.98/x
  3. Step 3: Cross multiply
    90,487.42x = 124,872.93 × 50,201.98
  4. Step 4: Simplify right side
    90,487.42x = 6,268,868,334.40
  5. Step 5: Solve for x
    x = 6,268,868,334.40/90,487.42
  6. Step 6: Final answer
    x = 69,278.89

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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.