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Finding the Fourth Proportional to 60,129.60, 90,193.76 and 18,576.96

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Solution

The fourth proportional to 60,129.60, 90,193.76 and 18,576.96 is: 27,865.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,129.60 : 90,193.76 = 18,576.96 : x
  2. Step 2: Convert to fraction form
    60,129.60/90,193.76 = 18,576.96/x
  3. Step 3: Cross multiply
    60,129.60x = 90,193.76 × 18,576.96
  4. Step 4: Simplify right side
    60,129.60x = 1,675,525,871.77
  5. Step 5: Solve for x
    x = 1,675,525,871.77/60,129.60
  6. Step 6: Final answer
    x = 27,865.24

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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.