Home / 90,361.34-135,357.93-42,832.37

Finding the Fourth Proportional to 90,361.34, 135,357.93 and 42,832.37

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Solution

The fourth proportional to 90,361.34, 135,357.93 and 42,832.37 is: 64,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,361.34 : 135,357.93 = 42,832.37 : x
  2. Step 2: Convert to fraction form
    90,361.34/135,357.93 = 42,832.37/x
  3. Step 3: Cross multiply
    90,361.34x = 135,357.93 × 42,832.37
  4. Step 4: Simplify right side
    90,361.34x = 5,797,700,263.40
  5. Step 5: Solve for x
    x = 5,797,700,263.40/90,361.34
  6. Step 6: Final answer
    x = 64,161.29

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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.