Home / 55,128.65-82,627.35-31,705.88

Finding the Fourth Proportional to 55,128.65, 82,627.35 and 31,705.88

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Solution

The fourth proportional to 55,128.65, 82,627.35 and 31,705.88 is: 47,521.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,128.65 : 82,627.35 = 31,705.88 : x
  2. Step 2: Convert to fraction form
    55,128.65/82,627.35 = 31,705.88/x
  3. Step 3: Cross multiply
    55,128.65x = 82,627.35 × 31,705.88
  4. Step 4: Simplify right side
    55,128.65x = 2,619,772,843.82
  5. Step 5: Solve for x
    x = 2,619,772,843.82/55,128.65
  6. Step 6: Final answer
    x = 47,521.08

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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.