Home / 74,223.62-102,429.72-42,392.57

Finding the Fourth Proportional to 74,223.62, 102,429.72 and 42,392.57

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Solution

The fourth proportional to 74,223.62, 102,429.72 and 42,392.57 is: 58,502.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,223.62 : 102,429.72 = 42,392.57 : x
  2. Step 2: Convert to fraction form
    74,223.62/102,429.72 = 42,392.57/x
  3. Step 3: Cross multiply
    74,223.62x = 102,429.72 × 42,392.57
  4. Step 4: Simplify right side
    74,223.62x = 4,342,259,331.25
  5. Step 5: Solve for x
    x = 4,342,259,331.25/74,223.62
  6. Step 6: Final answer
    x = 58,502.40

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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.