Home / 66,760.04-92,099.54-39,889.10

Finding the Fourth Proportional to 66,760.04, 92,099.54 and 39,889.10

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Solution

The fourth proportional to 66,760.04, 92,099.54 and 39,889.10 is: 55,029.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,760.04 : 92,099.54 = 39,889.10 : x
  2. Step 2: Convert to fraction form
    66,760.04/92,099.54 = 39,889.10/x
  3. Step 3: Cross multiply
    66,760.04x = 92,099.54 × 39,889.10
  4. Step 4: Simplify right side
    66,760.04x = 3,673,767,761.01
  5. Step 5: Solve for x
    x = 3,673,767,761.01/66,760.04
  6. Step 6: Final answer
    x = 55,029.44

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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.