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Finding the Fourth Proportional to 76,522.68, 105,665.01 and 63,842.34

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Solution

The fourth proportional to 76,522.68, 105,665.01 and 63,842.34 is: 88,155.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,522.68 : 105,665.01 = 63,842.34 : x
  2. Step 2: Convert to fraction form
    76,522.68/105,665.01 = 63,842.34/x
  3. Step 3: Cross multiply
    76,522.68x = 105,665.01 × 63,842.34
  4. Step 4: Simplify right side
    76,522.68x = 6,745,901,494.52
  5. Step 5: Solve for x
    x = 6,745,901,494.52/76,522.68
  6. Step 6: Final answer
    x = 88,155.58

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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.