Home / 98,642.46-136,019.58-62,786.64

Finding the Fourth Proportional to 98,642.46, 136,019.58 and 62,786.64

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Solution

The fourth proportional to 98,642.46, 136,019.58 and 62,786.64 is: 86,577.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,642.46 : 136,019.58 = 62,786.64 : x
  2. Step 2: Convert to fraction form
    98,642.46/136,019.58 = 62,786.64/x
  3. Step 3: Cross multiply
    98,642.46x = 136,019.58 × 62,786.64
  4. Step 4: Simplify right side
    98,642.46x = 8,540,212,402.41
  5. Step 5: Solve for x
    x = 8,540,212,402.41/98,642.46
  6. Step 6: Final answer
    x = 86,577.45

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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.