Home / 90,903.05-136,354.62-43,507.01

Finding the Fourth Proportional to 90,903.05, 136,354.62 and 43,507.01

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Solution

The fourth proportional to 90,903.05, 136,354.62 and 43,507.01 is: 65,260.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,903.05 : 136,354.62 = 43,507.01 : x
  2. Step 2: Convert to fraction form
    90,903.05/136,354.62 = 43,507.01/x
  3. Step 3: Cross multiply
    90,903.05x = 136,354.62 × 43,507.01
  4. Step 4: Simplify right side
    90,903.05x = 5,932,381,134.11
  5. Step 5: Solve for x
    x = 5,932,381,134.11/90,903.05
  6. Step 6: Final answer
    x = 65,260.53

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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.