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Finding the Fourth Proportional to 64,443.90, 96,626.90 and 28,898.78

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Solution

The fourth proportional to 64,443.90, 96,626.90 and 28,898.78 is: 43,330.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,443.90 : 96,626.90 = 28,898.78 : x
  2. Step 2: Convert to fraction form
    64,443.90/96,626.90 = 28,898.78/x
  3. Step 3: Cross multiply
    64,443.90x = 96,626.90 × 28,898.78
  4. Step 4: Simplify right side
    64,443.90x = 2,792,399,033.02
  5. Step 5: Solve for x
    x = 2,792,399,033.02/64,443.90
  6. Step 6: Final answer
    x = 43,330.69

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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.