Home / 75,815.85-104,646.69-43,995

Finding the Fourth Proportional to 75,815.85, 104,646.69 and 43,995

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Solution

The fourth proportional to 75,815.85, 104,646.69 and 43,995 is: 60,725.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,815.85 : 104,646.69 = 43,995 : x
  2. Step 2: Convert to fraction form
    75,815.85/104,646.69 = 43,995/x
  3. Step 3: Cross multiply
    75,815.85x = 104,646.69 × 43,995
  4. Step 4: Simplify right side
    75,815.85x = 4,603,931,126.55
  5. Step 5: Solve for x
    x = 4,603,931,126.55/75,815.85
  6. Step 6: Final answer
    x = 60,725.18

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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.