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Finding the Fourth Proportional to 60,129.44, 90,168.80 and 18,015.51

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Solution

The fourth proportional to 60,129.44, 90,168.80 and 18,015.51 is: 27,015.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,129.44 : 90,168.80 = 18,015.51 : x
  2. Step 2: Convert to fraction form
    60,129.44/90,168.80 = 18,015.51/x
  3. Step 3: Cross multiply
    60,129.44x = 90,168.80 × 18,015.51
  4. Step 4: Simplify right side
    60,129.44x = 1,624,437,166.14
  5. Step 5: Solve for x
    x = 1,624,437,166.14/60,129.44
  6. Step 6: Final answer
    x = 27,015.67

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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.