Home / 74,370.09-102,630.16-40,377.91

Finding the Fourth Proportional to 74,370.09, 102,630.16 and 40,377.91

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Solution

The fourth proportional to 74,370.09, 102,630.16 and 40,377.91 is: 55,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,370.09 : 102,630.16 = 40,377.91 : x
  2. Step 2: Convert to fraction form
    74,370.09/102,630.16 = 40,377.91/x
  3. Step 3: Cross multiply
    74,370.09x = 102,630.16 × 40,377.91
  4. Step 4: Simplify right side
    74,370.09x = 4,143,991,363.77
  5. Step 5: Solve for x
    x = 4,143,991,363.77/74,370.09
  6. Step 6: Final answer
    x = 55,721.21

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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.