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Finding the Fourth Proportional to 88,355, 121,929.90 and 48,613.56

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Solution

The fourth proportional to 88,355, 121,929.90 and 48,613.56 is: 67,086.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,355 : 121,929.90 = 48,613.56 : x
  2. Step 2: Convert to fraction form
    88,355/121,929.90 = 48,613.56/x
  3. Step 3: Cross multiply
    88,355x = 121,929.90 × 48,613.56
  4. Step 4: Simplify right side
    88,355x = 5,927,446,509.44
  5. Step 5: Solve for x
    x = 5,927,446,509.44/88,355
  6. Step 6: Final answer
    x = 67,086.71

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1.5x scale

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.