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Finding the Fourth Proportional to 64,257.74, 96,391.48 and 19,888.98

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Solution

The fourth proportional to 64,257.74, 96,391.48 and 19,888.98 is: 29,834.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,257.74 : 96,391.48 = 19,888.98 : x
  2. Step 2: Convert to fraction form
    64,257.74/96,391.48 = 19,888.98/x
  3. Step 3: Cross multiply
    64,257.74x = 96,391.48 × 19,888.98
  4. Step 4: Simplify right side
    64,257.74x = 1,917,128,217.89
  5. Step 5: Solve for x
    x = 1,917,128,217.89/64,257.74
  6. Step 6: Final answer
    x = 29,834.98

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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.