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Finding the Fourth Proportional to 45,120.58, 67,659.81 and 17,018.98

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Solution

The fourth proportional to 45,120.58, 67,659.81 and 17,018.98 is: 25,520.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,120.58 : 67,659.81 = 17,018.98 : x
  2. Step 2: Convert to fraction form
    45,120.58/67,659.81 = 17,018.98/x
  3. Step 3: Cross multiply
    45,120.58x = 67,659.81 × 17,018.98
  4. Step 4: Simplify right side
    45,120.58x = 1,151,500,953.19
  5. Step 5: Solve for x
    x = 1,151,500,953.19/45,120.58
  6. Step 6: Final answer
    x = 25,520.53

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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.