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Finding the Fourth Proportional to 63,373.44, 87,462 and 47,430

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Solution

The fourth proportional to 63,373.44, 87,462 and 47,430 is: 65,458.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,373.44 : 87,462 = 47,430 : x
  2. Step 2: Convert to fraction form
    63,373.44/87,462 = 47,430/x
  3. Step 3: Cross multiply
    63,373.44x = 87,462 × 47,430
  4. Step 4: Simplify right side
    63,373.44x = 4,148,322,660
  5. Step 5: Solve for x
    x = 4,148,322,660/63,373.44
  6. Step 6: Final answer
    x = 65,458.38

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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.