Home / 67,345.38-92,947.58-40,515

Finding the Fourth Proportional to 67,345.38, 92,947.58 and 40,515

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Solution

The fourth proportional to 67,345.38, 92,947.58 and 40,515 is: 55,917.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,345.38 : 92,947.58 = 40,515 : x
  2. Step 2: Convert to fraction form
    67,345.38/92,947.58 = 40,515/x
  3. Step 3: Cross multiply
    67,345.38x = 92,947.58 × 40,515
  4. Step 4: Simplify right side
    67,345.38x = 3,765,771,203.70
  5. Step 5: Solve for x
    x = 3,765,771,203.70/67,345.38
  6. Step 6: Final answer
    x = 55,917.29

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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.