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Finding the Fourth Proportional to 79,900.87, 119,820.16 and 29,953.71

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Solution

The fourth proportional to 79,900.87, 119,820.16 and 29,953.71 is: 44,918.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,900.87 : 119,820.16 = 29,953.71 : x
  2. Step 2: Convert to fraction form
    79,900.87/119,820.16 = 29,953.71/x
  3. Step 3: Cross multiply
    79,900.87x = 119,820.16 × 29,953.71
  4. Step 4: Simplify right side
    79,900.87x = 3,589,058,175.03
  5. Step 5: Solve for x
    x = 3,589,058,175.03/79,900.87
  6. Step 6: Final answer
    x = 44,918.89

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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.