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Finding the Fourth Proportional to 88,362, 121,939.56 and 48,618

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Solution

The fourth proportional to 88,362, 121,939.56 and 48,618 is: 67,092.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,362 : 121,939.56 = 48,618 : x
  2. Step 2: Convert to fraction form
    88,362/121,939.56 = 48,618/x
  3. Step 3: Cross multiply
    88,362x = 121,939.56 × 48,618
  4. Step 4: Simplify right side
    88,362x = 5,928,457,528.08
  5. Step 5: Solve for x
    x = 5,928,457,528.08/88,362
  6. Step 6: Final answer
    x = 67,092.84

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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.