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Finding the Fourth Proportional to 43,970.52, 65,957.63 and 12,805.77

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Solution

The fourth proportional to 43,970.52, 65,957.63 and 12,805.77 is: 19,209.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,970.52 : 65,957.63 = 12,805.77 : x
  2. Step 2: Convert to fraction form
    43,970.52/65,957.63 = 12,805.77/x
  3. Step 3: Cross multiply
    43,970.52x = 65,957.63 × 12,805.77
  4. Step 4: Simplify right side
    43,970.52x = 844,638,175.50
  5. Step 5: Solve for x
    x = 844,638,175.50/43,970.52
  6. Step 6: Final answer
    x = 19,209.19

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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.