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Finding the Fourth Proportional to 75,855, 113,793.30 and 40,307.04

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Solution

The fourth proportional to 75,855, 113,793.30 and 40,307.04 is: 60,466.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,855 : 113,793.30 = 40,307.04 : x
  2. Step 2: Convert to fraction form
    75,855/113,793.30 = 40,307.04/x
  3. Step 3: Cross multiply
    75,855x = 113,793.30 × 40,307.04
  4. Step 4: Simplify right side
    75,855x = 4,586,671,094.83
  5. Step 5: Solve for x
    x = 4,586,671,094.83/75,855
  6. Step 6: Final answer
    x = 60,466.30

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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.