Home / 74,370.12-102,630.20-40,377.94

Finding the Fourth Proportional to 74,370.12, 102,630.20 and 40,377.94

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Solution

The fourth proportional to 74,370.12, 102,630.20 and 40,377.94 is: 55,721.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,370.12 : 102,630.20 = 40,377.94 : x
  2. Step 2: Convert to fraction form
    74,370.12/102,630.20 = 40,377.94/x
  3. Step 3: Cross multiply
    74,370.12x = 102,630.20 × 40,377.94
  4. Step 4: Simplify right side
    74,370.12x = 4,143,995,342.75
  5. Step 5: Solve for x
    x = 4,143,995,342.75/74,370.12
  6. Step 6: Final answer
    x = 55,721.24

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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.