Home / 69,990.78-96,586.77-38,161.02

Finding the Fourth Proportional to 69,990.78, 96,586.77 and 38,161.02

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Solution

The fourth proportional to 69,990.78, 96,586.77 and 38,161.02 is: 52,661.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,990.78 : 96,586.77 = 38,161.02 : x
  2. Step 2: Convert to fraction form
    69,990.78/96,586.77 = 38,161.02/x
  3. Step 3: Cross multiply
    69,990.78x = 96,586.77 × 38,161.02
  4. Step 4: Simplify right side
    69,990.78x = 3,685,849,661.71
  5. Step 5: Solve for x
    x = 3,685,849,661.71/69,990.78
  6. Step 6: Final answer
    x = 52,661.93

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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.