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Finding the Fourth Proportional to 66,943.68, 92,379.16 and 36,728.32

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Solution

The fourth proportional to 66,943.68, 92,379.16 and 36,728.32 is: 50,683.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,943.68 : 92,379.16 = 36,728.32 : x
  2. Step 2: Convert to fraction form
    66,943.68/92,379.16 = 36,728.32/x
  3. Step 3: Cross multiply
    66,943.68x = 92,379.16 × 36,728.32
  4. Step 4: Simplify right side
    66,943.68x = 3,392,931,349.81
  5. Step 5: Solve for x
    x = 3,392,931,349.81/66,943.68
  6. Step 6: Final answer
    x = 50,683.37

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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.