Home / 209,561.16-314,338.68-51,789.63

Finding the Fourth Proportional to 209,561.16, 314,338.68 and 51,789.63

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Solution

The fourth proportional to 209,561.16, 314,338.68 and 51,789.63 is: 77,683.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,561.16 : 314,338.68 = 51,789.63 : x
  2. Step 2: Convert to fraction form
    209,561.16/314,338.68 = 51,789.63/x
  3. Step 3: Cross multiply
    209,561.16x = 314,338.68 × 51,789.63
  4. Step 4: Simplify right side
    209,561.16x = 16,279,483,931.89
  5. Step 5: Solve for x
    x = 16,279,483,931.89/209,561.16
  6. Step 6: Final answer
    x = 77,683.69

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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.