Home / 77,011.68-106,230.24-53,137.20

Finding the Fourth Proportional to 77,011.68, 106,230.24 and 53,137.20

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Solution

The fourth proportional to 77,011.68, 106,230.24 and 53,137.20 is: 73,297.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,011.68 : 106,230.24 = 53,137.20 : x
  2. Step 2: Convert to fraction form
    77,011.68/106,230.24 = 53,137.20/x
  3. Step 3: Cross multiply
    77,011.68x = 106,230.24 × 53,137.20
  4. Step 4: Simplify right side
    77,011.68x = 5,644,777,508.93
  5. Step 5: Solve for x
    x = 5,644,777,508.93/77,011.68
  6. Step 6: Final answer
    x = 73,297.68

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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.