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Finding the Fourth Proportional to 40,360.80, 60,521.76 and 14,064.96

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Solution

The fourth proportional to 40,360.80, 60,521.76 and 14,064.96 is: 21,090.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,360.80 : 60,521.76 = 14,064.96 : x
  2. Step 2: Convert to fraction form
    40,360.80/60,521.76 = 14,064.96/x
  3. Step 3: Cross multiply
    40,360.80x = 60,521.76 × 14,064.96
  4. Step 4: Simplify right side
    40,360.80x = 851,236,133.53
  5. Step 5: Solve for x
    x = 851,236,133.53/40,360.80
  6. Step 6: Final answer
    x = 21,090.67

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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.