Home / 76,814.72-106,003.68-42,822.80

Finding the Fourth Proportional to 76,814.72, 106,003.68 and 42,822.80

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Solution

The fourth proportional to 76,814.72, 106,003.68 and 42,822.80 is: 59,095.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,814.72 : 106,003.68 = 42,822.80 : x
  2. Step 2: Convert to fraction form
    76,814.72/106,003.68 = 42,822.80/x
  3. Step 3: Cross multiply
    76,814.72x = 106,003.68 × 42,822.80
  4. Step 4: Simplify right side
    76,814.72x = 4,539,374,387.90
  5. Step 5: Solve for x
    x = 4,539,374,387.90/76,814.72
  6. Step 6: Final answer
    x = 59,095.11

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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.