Home / 90,403.48-135,608.46-37,740.52

Finding the Fourth Proportional to 90,403.48, 135,608.46 and 37,740.52

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Solution

The fourth proportional to 90,403.48, 135,608.46 and 37,740.52 is: 56,612.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,403.48 : 135,608.46 = 37,740.52 : x
  2. Step 2: Convert to fraction form
    90,403.48/135,608.46 = 37,740.52/x
  3. Step 3: Cross multiply
    90,403.48x = 135,608.46 × 37,740.52
  4. Step 4: Simplify right side
    90,403.48x = 5,117,933,796.80
  5. Step 5: Solve for x
    x = 5,117,933,796.80/90,403.48
  6. Step 6: Final answer
    x = 56,612.13

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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.