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Finding the Fourth Proportional to 63,015.02, 86,961.04 and 34,720.64

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Solution

The fourth proportional to 63,015.02, 86,961.04 and 34,720.64 is: 47,914.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,015.02 : 86,961.04 = 34,720.64 : x
  2. Step 2: Convert to fraction form
    63,015.02/86,961.04 = 34,720.64/x
  3. Step 3: Cross multiply
    63,015.02x = 86,961.04 × 34,720.64
  4. Step 4: Simplify right side
    63,015.02x = 3,019,342,963.87
  5. Step 5: Solve for x
    x = 3,019,342,963.87/63,015.02
  6. Step 6: Final answer
    x = 47,914.66

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1.5x scale

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.