Home / 79,821.12-119,731.68-35,437.44

Finding the Fourth Proportional to 79,821.12, 119,731.68 and 35,437.44

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Solution

The fourth proportional to 79,821.12, 119,731.68 and 35,437.44 is: 53,156.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,821.12 : 119,731.68 = 35,437.44 : x
  2. Step 2: Convert to fraction form
    79,821.12/119,731.68 = 35,437.44/x
  3. Step 3: Cross multiply
    79,821.12x = 119,731.68 × 35,437.44
  4. Step 4: Simplify right side
    79,821.12x = 4,242,984,226.10
  5. Step 5: Solve for x
    x = 4,242,984,226.10/79,821.12
  6. Step 6: Final answer
    x = 53,156.16

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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.