Home / 76,169.13-105,112.10-42,176.89

Finding the Fourth Proportional to 76,169.13, 105,112.10 and 42,176.89

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Solution

The fourth proportional to 76,169.13, 105,112.10 and 42,176.89 is: 58,203.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,169.13 : 105,112.10 = 42,176.89 : x
  2. Step 2: Convert to fraction form
    76,169.13/105,112.10 = 42,176.89/x
  3. Step 3: Cross multiply
    76,169.13x = 105,112.10 × 42,176.89
  4. Step 4: Simplify right side
    76,169.13x = 4,433,301,716.20
  5. Step 5: Solve for x
    x = 4,433,301,716.20/76,169.13
  6. Step 6: Final answer
    x = 58,203.39

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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.