Home / 90,500.02-135,795.24-40,615.78

Finding the Fourth Proportional to 90,500.02, 135,795.24 and 40,615.78

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Solution

The fourth proportional to 90,500.02, 135,795.24 and 40,615.78 is: 60,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,500.02 : 135,795.24 = 40,615.78 : x
  2. Step 2: Convert to fraction form
    90,500.02/135,795.24 = 40,615.78/x
  3. Step 3: Cross multiply
    90,500.02x = 135,795.24 × 40,615.78
  4. Step 4: Simplify right side
    90,500.02x = 5,515,429,592.89
  5. Step 5: Solve for x
    x = 5,515,429,592.89/90,500.02
  6. Step 6: Final answer
    x = 60,943.96

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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.