Home / 68,715.72-94,843.62-40,430.52

Finding the Fourth Proportional to 68,715.72, 94,843.62 and 40,430.52

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Solution

The fourth proportional to 68,715.72, 94,843.62 and 40,430.52 is: 55,803.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,715.72 : 94,843.62 = 40,430.52 : x
  2. Step 2: Convert to fraction form
    68,715.72/94,843.62 = 40,430.52/x
  3. Step 3: Cross multiply
    68,715.72x = 94,843.62 × 40,430.52
  4. Step 4: Simplify right side
    68,715.72x = 3,834,576,875.28
  5. Step 5: Solve for x
    x = 3,834,576,875.28/68,715.72
  6. Step 6: Final answer
    x = 55,803.49

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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.