Home / 90,368.43-135,589.82-39,741.40

Finding the Fourth Proportional to 90,368.43, 135,589.82 and 39,741.40

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Solution

The fourth proportional to 90,368.43, 135,589.82 and 39,741.40 is: 59,628.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,368.43 : 135,589.82 = 39,741.40 : x
  2. Step 2: Convert to fraction form
    90,368.43/135,589.82 = 39,741.40/x
  3. Step 3: Cross multiply
    90,368.43x = 135,589.82 × 39,741.40
  4. Step 4: Simplify right side
    90,368.43x = 5,388,529,272.55
  5. Step 5: Solve for x
    x = 5,388,529,272.55/90,368.43
  6. Step 6: Final answer
    x = 59,628.45

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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.