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Finding the Fourth Proportional to 79,665.77, 119,482.79 and 51,118.28

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Solution

The fourth proportional to 79,665.77, 119,482.79 and 51,118.28 is: 76,667.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,665.77 : 119,482.79 = 51,118.28 : x
  2. Step 2: Convert to fraction form
    79,665.77/119,482.79 = 51,118.28/x
  3. Step 3: Cross multiply
    79,665.77x = 119,482.79 × 51,118.28
  4. Step 4: Simplify right side
    79,665.77x = 6,107,754,757.52
  5. Step 5: Solve for x
    x = 6,107,754,757.52/79,665.77
  6. Step 6: Final answer
    x = 76,667.24

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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.