Home / 53,709.39-80,613.32-28,777.59

Finding the Fourth Proportional to 53,709.39, 80,613.32 and 28,777.59

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Solution

The fourth proportional to 53,709.39, 80,613.32 and 28,777.59 is: 43,192.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,709.39 : 80,613.32 = 28,777.59 : x
  2. Step 2: Convert to fraction form
    53,709.39/80,613.32 = 28,777.59/x
  3. Step 3: Cross multiply
    53,709.39x = 80,613.32 × 28,777.59
  4. Step 4: Simplify right side
    53,709.39x = 2,319,856,927.61
  5. Step 5: Solve for x
    x = 2,319,856,927.61/53,709.39
  6. Step 6: Final answer
    x = 43,192.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.