Home / 74,148.22-102,331.85-42,321.90

Finding the Fourth Proportional to 74,148.22, 102,331.85 and 42,321.90

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Solution

The fourth proportional to 74,148.22, 102,331.85 and 42,321.90 is: 58,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,148.22 : 102,331.85 = 42,321.90 : x
  2. Step 2: Convert to fraction form
    74,148.22/102,331.85 = 42,321.90/x
  3. Step 3: Cross multiply
    74,148.22x = 102,331.85 × 42,321.90
  4. Step 4: Simplify right side
    74,148.22x = 4,330,878,732.71
  5. Step 5: Solve for x
    x = 4,330,878,732.71/74,148.22
  6. Step 6: Final answer
    x = 58,408.40

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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.