Home / 88,933.12-133,334.40-42,131.20

Finding the Fourth Proportional to 88,933.12, 133,334.40 and 42,131.20

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Solution

The fourth proportional to 88,933.12, 133,334.40 and 42,131.20 is: 63,165.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,933.12 : 133,334.40 = 42,131.20 : x
  2. Step 2: Convert to fraction form
    88,933.12/133,334.40 = 42,131.20/x
  3. Step 3: Cross multiply
    88,933.12x = 133,334.40 × 42,131.20
  4. Step 4: Simplify right side
    88,933.12x = 5,617,538,273.28
  5. Step 5: Solve for x
    x = 5,617,538,273.28/88,933.12
  6. Step 6: Final answer
    x = 63,165.87

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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.