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Finding the Fourth Proportional to 79,652.10, 119,482.48 and 20,488.26

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Solution

The fourth proportional to 79,652.10, 119,482.48 and 20,488.26 is: 30,733.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,652.10 : 119,482.48 = 20,488.26 : x
  2. Step 2: Convert to fraction form
    79,652.10/119,482.48 = 20,488.26/x
  3. Step 3: Cross multiply
    79,652.10x = 119,482.48 × 20,488.26
  4. Step 4: Simplify right side
    79,652.10x = 2,447,988,115.68
  5. Step 5: Solve for x
    x = 2,447,988,115.68/79,652.10
  6. Step 6: Final answer
    x = 30,733.50

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1.5x scale

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.