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Finding the Fourth Proportional to 63,012, 86,953.76 and 34,331.76

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Solution

The fourth proportional to 63,012, 86,953.76 and 34,331.76 is: 47,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,012 : 86,953.76 = 34,331.76 : x
  2. Step 2: Convert to fraction form
    63,012/86,953.76 = 34,331.76/x
  3. Step 3: Cross multiply
    63,012x = 86,953.76 × 34,331.76
  4. Step 4: Simplify right side
    63,012x = 2,985,275,619.42
  5. Step 5: Solve for x
    x = 2,985,275,619.42/63,012
  6. Step 6: Final answer
    x = 47,376.30

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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.