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Finding the Fourth Proportional to 79,652.35, 119,482.85 and 20,488.51

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Solution

The fourth proportional to 79,652.35, 119,482.85 and 20,488.51 is: 30,733.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,652.35 : 119,482.85 = 20,488.51 : x
  2. Step 2: Convert to fraction form
    79,652.35/119,482.85 = 20,488.51/x
  3. Step 3: Cross multiply
    79,652.35x = 119,482.85 × 20,488.51
  4. Step 4: Simplify right side
    79,652.35x = 2,448,025,567.05
  5. Step 5: Solve for x
    x = 2,448,025,567.05/79,652.35
  6. Step 6: Final answer
    x = 30,733.88

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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.