Home / 77,897.43-107,500.55-47,682.20

Finding the Fourth Proportional to 77,897.43, 107,500.55 and 47,682.20

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Solution

The fourth proportional to 77,897.43, 107,500.55 and 47,682.20 is: 65,802.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,897.43 : 107,500.55 = 47,682.20 : x
  2. Step 2: Convert to fraction form
    77,897.43/107,500.55 = 47,682.20/x
  3. Step 3: Cross multiply
    77,897.43x = 107,500.55 × 47,682.20
  4. Step 4: Simplify right side
    77,897.43x = 5,125,861,949.30
  5. Step 5: Solve for x
    x = 5,125,861,949.30/77,897.43
  6. Step 6: Final answer
    x = 65,802.71

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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.