Home / 68,799.98-94,944.13-40,139.35

Finding the Fourth Proportional to 68,799.98, 94,944.13 and 40,139.35

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Solution

The fourth proportional to 68,799.98, 94,944.13 and 40,139.35 is: 55,392.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,799.98 : 94,944.13 = 40,139.35 : x
  2. Step 2: Convert to fraction form
    68,799.98/94,944.13 = 40,139.35/x
  3. Step 3: Cross multiply
    68,799.98x = 94,944.13 × 40,139.35
  4. Step 4: Simplify right side
    68,799.98x = 3,810,995,326.81
  5. Step 5: Solve for x
    x = 3,810,995,326.81/68,799.98
  6. Step 6: Final answer
    x = 55,392.39

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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.