Home / 56,353.29-77,767.68-30,861.33

Finding the Fourth Proportional to 56,353.29, 77,767.68 and 30,861.33

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Solution

The fourth proportional to 56,353.29, 77,767.68 and 30,861.33 is: 42,588.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,353.29 : 77,767.68 = 30,861.33 : x
  2. Step 2: Convert to fraction form
    56,353.29/77,767.68 = 30,861.33/x
  3. Step 3: Cross multiply
    56,353.29x = 77,767.68 × 30,861.33
  4. Step 4: Simplify right side
    56,353.29x = 2,400,014,035.81
  5. Step 5: Solve for x
    x = 2,400,014,035.81/56,353.29
  6. Step 6: Final answer
    x = 42,588.71

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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.