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Finding the Fourth Proportional to 90,030.44, 134,912.01 and 36,657.12

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Solution

The fourth proportional to 90,030.44, 134,912.01 and 36,657.12 is: 54,931.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,030.44 : 134,912.01 = 36,657.12 : x
  2. Step 2: Convert to fraction form
    90,030.44/134,912.01 = 36,657.12/x
  3. Step 3: Cross multiply
    90,030.44x = 134,912.01 × 36,657.12
  4. Step 4: Simplify right side
    90,030.44x = 4,945,485,740.01
  5. Step 5: Solve for x
    x = 4,945,485,740.01/90,030.44
  6. Step 6: Final answer
    x = 54,931.27

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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.