Home / 77,433.98-116,137.13-20,508.29

Finding the Fourth Proportional to 77,433.98, 116,137.13 and 20,508.29

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Solution

The fourth proportional to 77,433.98, 116,137.13 and 20,508.29 is: 30,758.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,433.98 : 116,137.13 = 20,508.29 : x
  2. Step 2: Convert to fraction form
    77,433.98/116,137.13 = 20,508.29/x
  3. Step 3: Cross multiply
    77,433.98x = 116,137.13 × 20,508.29
  4. Step 4: Simplify right side
    77,433.98x = 2,381,773,694.09
  5. Step 5: Solve for x
    x = 2,381,773,694.09/77,433.98
  6. Step 6: Final answer
    x = 30,758.77

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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.