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Finding the Fourth Proportional to 45,912, 68,803.36 and 36,510.32

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Solution

The fourth proportional to 45,912, 68,803.36 and 36,510.32 is: 54,714.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,912 : 68,803.36 = 36,510.32 : x
  2. Step 2: Convert to fraction form
    45,912/68,803.36 = 36,510.32/x
  3. Step 3: Cross multiply
    45,912x = 68,803.36 × 36,510.32
  4. Step 4: Simplify right side
    45,912x = 2,512,032,690.68
  5. Step 5: Solve for x
    x = 2,512,032,690.68/45,912
  6. Step 6: Final answer
    x = 54,714.08

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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.