Home / 81,550.55-112,539.96-47,582.39

Finding the Fourth Proportional to 81,550.55, 112,539.96 and 47,582.39

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Solution

The fourth proportional to 81,550.55, 112,539.96 and 47,582.39 is: 65,663.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,550.55 : 112,539.96 = 47,582.39 : x
  2. Step 2: Convert to fraction form
    81,550.55/112,539.96 = 47,582.39/x
  3. Step 3: Cross multiply
    81,550.55x = 112,539.96 × 47,582.39
  4. Step 4: Simplify right side
    81,550.55x = 5,354,919,781.79
  5. Step 5: Solve for x
    x = 5,354,919,781.79/81,550.55
  6. Step 6: Final answer
    x = 65,663.81

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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.