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Finding the Fourth Proportional to 64,286.55, 96,395.27 and 19,894.23

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Solution

The fourth proportional to 64,286.55, 96,395.27 and 19,894.23 is: 29,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,286.55 : 96,395.27 = 19,894.23 : x
  2. Step 2: Convert to fraction form
    64,286.55/96,395.27 = 19,894.23/x
  3. Step 3: Cross multiply
    64,286.55x = 96,395.27 × 19,894.23
  4. Step 4: Simplify right side
    64,286.55x = 1,917,709,572.82
  5. Step 5: Solve for x
    x = 1,917,709,572.82/64,286.55
  6. Step 6: Final answer
    x = 29,830.65

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1.5x scale

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.