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Finding the Fourth Proportional to 66,693.76, 92,036.88 and 36,478.96

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Solution

The fourth proportional to 66,693.76, 92,036.88 and 36,478.96 is: 50,340.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,693.76 : 92,036.88 = 36,478.96 : x
  2. Step 2: Convert to fraction form
    66,693.76/92,036.88 = 36,478.96/x
  3. Step 3: Cross multiply
    66,693.76x = 92,036.88 × 36,478.96
  4. Step 4: Simplify right side
    66,693.76x = 3,357,409,664.04
  5. Step 5: Solve for x
    x = 3,357,409,664.04/66,693.76
  6. Step 6: Final answer
    x = 50,340.69

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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.