Home / 92,906.32-139,376.76-30,581.20

Finding the Fourth Proportional to 92,906.32, 139,376.76 and 30,581.20

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Solution

The fourth proportional to 92,906.32, 139,376.76 and 30,581.20 is: 45,877.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,906.32 : 139,376.76 = 30,581.20 : x
  2. Step 2: Convert to fraction form
    92,906.32/139,376.76 = 30,581.20/x
  3. Step 3: Cross multiply
    92,906.32x = 139,376.76 × 30,581.20
  4. Step 4: Simplify right side
    92,906.32x = 4,262,308,572.91
  5. Step 5: Solve for x
    x = 4,262,308,572.91/92,906.32
  6. Step 6: Final answer
    x = 45,877.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.