Home / 56,183.36-77,530.92-30,688.88

Finding the Fourth Proportional to 56,183.36, 77,530.92 and 30,688.88

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Solution

The fourth proportional to 56,183.36, 77,530.92 and 30,688.88 is: 42,349.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,183.36 : 77,530.92 = 30,688.88 : x
  2. Step 2: Convert to fraction form
    56,183.36/77,530.92 = 30,688.88/x
  3. Step 3: Cross multiply
    56,183.36x = 77,530.92 × 30,688.88
  4. Step 4: Simplify right side
    56,183.36x = 2,379,337,100.17
  5. Step 5: Solve for x
    x = 2,379,337,100.17/56,183.36
  6. Step 6: Final answer
    x = 42,349.50

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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.