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Finding the Fourth Proportional to 64,255.79, 96,392.88 and 19,886.01

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Solution

The fourth proportional to 64,255.79, 96,392.88 and 19,886.01 is: 29,831.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,255.79 : 96,392.88 = 19,886.01 : x
  2. Step 2: Convert to fraction form
    64,255.79/96,392.88 = 19,886.01/x
  3. Step 3: Cross multiply
    64,255.79x = 96,392.88 × 19,886.01
  4. Step 4: Simplify right side
    64,255.79x = 1,916,869,775.61
  5. Step 5: Solve for x
    x = 1,916,869,775.61/64,255.79
  6. Step 6: Final answer
    x = 29,831.86

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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.