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Finding the Fourth Proportional to 45,666, 63,059.14 and 28,699.64

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Solution

The fourth proportional to 45,666, 63,059.14 and 28,699.64 is: 39,630.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,666 : 63,059.14 = 28,699.64 : x
  2. Step 2: Convert to fraction form
    45,666/63,059.14 = 28,699.64/x
  3. Step 3: Cross multiply
    45,666x = 63,059.14 × 28,699.64
  4. Step 4: Simplify right side
    45,666x = 1,809,774,616.71
  5. Step 5: Solve for x
    x = 1,809,774,616.71/45,666
  6. Step 6: Final answer
    x = 39,630.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.