Home / 78,439.52-108,249.16-46,168.32

Finding the Fourth Proportional to 78,439.52, 108,249.16 and 46,168.32

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Solution

The fourth proportional to 78,439.52, 108,249.16 and 46,168.32 is: 63,713.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,439.52 : 108,249.16 = 46,168.32 : x
  2. Step 2: Convert to fraction form
    78,439.52/108,249.16 = 46,168.32/x
  3. Step 3: Cross multiply
    78,439.52x = 108,249.16 × 46,168.32
  4. Step 4: Simplify right side
    78,439.52x = 4,997,681,858.61
  5. Step 5: Solve for x
    x = 4,997,681,858.61/78,439.52
  6. Step 6: Final answer
    x = 63,713.83

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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.