Home / 90,332.55-135,582.12-45,991.26

Finding the Fourth Proportional to 90,332.55, 135,582.12 and 45,991.26

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Solution

The fourth proportional to 90,332.55, 135,582.12 and 45,991.26 is: 69,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,332.55 : 135,582.12 = 45,991.26 : x
  2. Step 2: Convert to fraction form
    90,332.55/135,582.12 = 45,991.26/x
  3. Step 3: Cross multiply
    90,332.55x = 135,582.12 × 45,991.26
  4. Step 4: Simplify right side
    90,332.55x = 6,235,592,532.27
  5. Step 5: Solve for x
    x = 6,235,592,532.27/90,332.55
  6. Step 6: Final answer
    x = 69,029.30

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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.