Home / 72,000.09-99,361.49-41,787.90

Finding the Fourth Proportional to 72,000.09, 99,361.49 and 41,787.90

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Solution

The fourth proportional to 72,000.09, 99,361.49 and 41,787.90 is: 57,668.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,000.09 : 99,361.49 = 41,787.90 : x
  2. Step 2: Convert to fraction form
    72,000.09/99,361.49 = 41,787.90/x
  3. Step 3: Cross multiply
    72,000.09x = 99,361.49 × 41,787.90
  4. Step 4: Simplify right side
    72,000.09x = 4,152,107,799.03
  5. Step 5: Solve for x
    x = 4,152,107,799.03/72,000.09
  6. Step 6: Final answer
    x = 57,668.09

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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.