Home / 90,526.60-135,828.78-64,399.24

Finding the Fourth Proportional to 90,526.60, 135,828.78 and 64,399.24

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Solution

The fourth proportional to 90,526.60, 135,828.78 and 64,399.24 is: 96,626.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,526.60 : 135,828.78 = 64,399.24 : x
  2. Step 2: Convert to fraction form
    90,526.60/135,828.78 = 64,399.24/x
  3. Step 3: Cross multiply
    90,526.60x = 135,828.78 × 64,399.24
  4. Step 4: Simplify right side
    90,526.60x = 8,747,270,202.13
  5. Step 5: Solve for x
    x = 8,747,270,202.13/90,526.60
  6. Step 6: Final answer
    x = 96,626.52

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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.