Home / 74,408.62-102,685.71-42,587.77

Finding the Fourth Proportional to 74,408.62, 102,685.71 and 42,587.77

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Solution

The fourth proportional to 74,408.62, 102,685.71 and 42,587.77 is: 58,772.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,408.62 : 102,685.71 = 42,587.77 : x
  2. Step 2: Convert to fraction form
    74,408.62/102,685.71 = 42,587.77/x
  3. Step 3: Cross multiply
    74,408.62x = 102,685.71 × 42,587.77
  4. Step 4: Simplify right side
    74,408.62x = 4,373,155,399.77
  5. Step 5: Solve for x
    x = 4,373,155,399.77/74,408.62
  6. Step 6: Final answer
    x = 58,772.16

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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.