Home / 84,319.32-126,485.52-31,727.64

Finding the Fourth Proportional to 84,319.32, 126,485.52 and 31,727.64

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Solution

The fourth proportional to 84,319.32, 126,485.52 and 31,727.64 is: 47,593.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,319.32 : 126,485.52 = 31,727.64 : x
  2. Step 2: Convert to fraction form
    84,319.32/126,485.52 = 31,727.64/x
  3. Step 3: Cross multiply
    84,319.32x = 126,485.52 × 31,727.64
  4. Step 4: Simplify right side
    84,319.32x = 4,013,087,043.77
  5. Step 5: Solve for x
    x = 4,013,087,043.77/84,319.32
  6. Step 6: Final answer
    x = 47,593.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.