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Finding the Fourth Proportional to 79,907.40, 119,934.72 and 40,492.08

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Solution

The fourth proportional to 79,907.40, 119,934.72 and 40,492.08 is: 60,775.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,907.40 : 119,934.72 = 40,492.08 : x
  2. Step 2: Convert to fraction form
    79,907.40/119,934.72 = 40,492.08/x
  3. Step 3: Cross multiply
    79,907.40x = 119,934.72 × 40,492.08
  4. Step 4: Simplify right side
    79,907.40x = 4,856,406,277.02
  5. Step 5: Solve for x
    x = 4,856,406,277.02/79,907.40
  6. Step 6: Final answer
    x = 60,775.43

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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.