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Finding the Fourth Proportional to 63,491.60, 87,619.60 and 34,809.36

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Solution

The fourth proportional to 63,491.60, 87,619.60 and 34,809.36 is: 48,037.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,491.60 : 87,619.60 = 34,809.36 : x
  2. Step 2: Convert to fraction form
    63,491.60/87,619.60 = 34,809.36/x
  3. Step 3: Cross multiply
    63,491.60x = 87,619.60 × 34,809.36
  4. Step 4: Simplify right side
    63,491.60x = 3,049,982,199.46
  5. Step 5: Solve for x
    x = 3,049,982,199.46/63,491.60
  6. Step 6: Final answer
    x = 48,037.57

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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.