Home / 66,039.72-91,141.10-37,739.92

Finding the Fourth Proportional to 66,039.72, 91,141.10 and 37,739.92

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Solution

The fourth proportional to 66,039.72, 91,141.10 and 37,739.92 is: 52,084.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,039.72 : 91,141.10 = 37,739.92 : x
  2. Step 2: Convert to fraction form
    66,039.72/91,141.10 = 37,739.92/x
  3. Step 3: Cross multiply
    66,039.72x = 91,141.10 × 37,739.92
  4. Step 4: Simplify right side
    66,039.72x = 3,439,657,822.71
  5. Step 5: Solve for x
    x = 3,439,657,822.71/66,039.72
  6. Step 6: Final answer
    x = 52,084.68

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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.