Home / 66,638.29-99,908.06-40,336.81

Finding the Fourth Proportional to 66,638.29, 99,908.06 and 40,336.81

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Solution

The fourth proportional to 66,638.29, 99,908.06 and 40,336.81 is: 60,475.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,638.29 : 99,908.06 = 40,336.81 : x
  2. Step 2: Convert to fraction form
    66,638.29/99,908.06 = 40,336.81/x
  3. Step 3: Cross multiply
    66,638.29x = 99,908.06 × 40,336.81
  4. Step 4: Simplify right side
    66,638.29x = 4,029,972,232.00
  5. Step 5: Solve for x
    x = 4,029,972,232.00/66,638.29
  6. Step 6: Final answer
    x = 60,475.32

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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.