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Finding the Fourth Proportional to 79,012.73, 109,037.67 and 45,019.73

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Solution

The fourth proportional to 79,012.73, 109,037.67 and 45,019.73 is: 62,127.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,012.73 : 109,037.67 = 45,019.73 : x
  2. Step 2: Convert to fraction form
    79,012.73/109,037.67 = 45,019.73/x
  3. Step 3: Cross multiply
    79,012.73x = 109,037.67 × 45,019.73
  4. Step 4: Simplify right side
    79,012.73x = 4,908,846,463.23
  5. Step 5: Solve for x
    x = 4,908,846,463.23/79,012.73
  6. Step 6: Final answer
    x = 62,127.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.