Home / 89,109.46-122,971.01-53,307.88

Finding the Fourth Proportional to 89,109.46, 122,971.01 and 53,307.88

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Solution

The fourth proportional to 89,109.46, 122,971.01 and 53,307.88 is: 73,564.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,109.46 : 122,971.01 = 53,307.88 : x
  2. Step 2: Convert to fraction form
    89,109.46/122,971.01 = 53,307.88/x
  3. Step 3: Cross multiply
    89,109.46x = 122,971.01 × 53,307.88
  4. Step 4: Simplify right side
    89,109.46x = 6,555,323,229.70
  5. Step 5: Solve for x
    x = 6,555,323,229.70/89,109.46
  6. Step 6: Final answer
    x = 73,564.84

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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.