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Finding the Fourth Proportional to 45,379.88, 68,082.06 and 15,799.40

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Solution

The fourth proportional to 45,379.88, 68,082.06 and 15,799.40 is: 23,703.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,379.88 : 68,082.06 = 15,799.40 : x
  2. Step 2: Convert to fraction form
    45,379.88/68,082.06 = 15,799.40/x
  3. Step 3: Cross multiply
    45,379.88x = 68,082.06 × 15,799.40
  4. Step 4: Simplify right side
    45,379.88x = 1,075,655,698.76
  5. Step 5: Solve for x
    x = 1,075,655,698.76/45,379.88
  6. Step 6: Final answer
    x = 23,703.36

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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.