Home / 82,101.09-122,929.19-42,575.32

Finding the Fourth Proportional to 82,101.09, 122,929.19 and 42,575.32

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Solution

The fourth proportional to 82,101.09, 122,929.19 and 42,575.32 is: 63,747.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,101.09 : 122,929.19 = 42,575.32 : x
  2. Step 2: Convert to fraction form
    82,101.09/122,929.19 = 42,575.32/x
  3. Step 3: Cross multiply
    82,101.09x = 122,929.19 × 42,575.32
  4. Step 4: Simplify right side
    82,101.09x = 5,233,748,774.07
  5. Step 5: Solve for x
    x = 5,233,748,774.07/82,101.09
  6. Step 6: Final answer
    x = 63,747.62

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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.