Home / 63,100.89-87,070.28-39,218.85

Finding the Fourth Proportional to 63,100.89, 87,070.28 and 39,218.85

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Solution

The fourth proportional to 63,100.89, 87,070.28 and 39,218.85 is: 54,116.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,100.89 : 87,070.28 = 39,218.85 : x
  2. Step 2: Convert to fraction form
    63,100.89/87,070.28 = 39,218.85/x
  3. Step 3: Cross multiply
    63,100.89x = 87,070.28 × 39,218.85
  4. Step 4: Simplify right side
    63,100.89x = 3,414,796,054.68
  5. Step 5: Solve for x
    x = 3,414,796,054.68/63,100.89
  6. Step 6: Final answer
    x = 54,116.45

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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.