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Finding the Fourth Proportional to 76,000.20, 104,883.06 and 42,010.20

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Solution

The fourth proportional to 76,000.20, 104,883.06 and 42,010.20 is: 57,975.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,000.20 : 104,883.06 = 42,010.20 : x
  2. Step 2: Convert to fraction form
    76,000.20/104,883.06 = 42,010.20/x
  3. Step 3: Cross multiply
    76,000.20x = 104,883.06 × 42,010.20
  4. Step 4: Simplify right side
    76,000.20x = 4,406,158,327.21
  5. Step 5: Solve for x
    x = 4,406,158,327.21/76,000.20
  6. Step 6: Final answer
    x = 57,975.61

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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.