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Finding the Fourth Proportional to 90,040.01, 135,035.10 and 37,437.80

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Solution

The fourth proportional to 90,040.01, 135,035.10 and 37,437.80 is: 56,146.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,040.01 : 135,035.10 = 37,437.80 : x
  2. Step 2: Convert to fraction form
    90,040.01/135,035.10 = 37,437.80/x
  3. Step 3: Cross multiply
    90,040.01x = 135,035.10 × 37,437.80
  4. Step 4: Simplify right side
    90,040.01x = 5,055,416,391.60
  5. Step 5: Solve for x
    x = 5,055,416,391.60/90,040.01
  6. Step 6: Final answer
    x = 56,146.34

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1.5x scale

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.