Home / 77,673.28-107,145.84-53,813.92

Finding the Fourth Proportional to 77,673.28, 107,145.84 and 53,813.92

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Solution

The fourth proportional to 77,673.28, 107,145.84 and 53,813.92 is: 74,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,673.28 : 107,145.84 = 53,813.92 : x
  2. Step 2: Convert to fraction form
    77,673.28/107,145.84 = 53,813.92/x
  3. Step 3: Cross multiply
    77,673.28x = 107,145.84 × 53,813.92
  4. Step 4: Simplify right side
    77,673.28x = 5,765,937,662.09
  5. Step 5: Solve for x
    x = 5,765,937,662.09/77,673.28
  6. Step 6: Final answer
    x = 74,233.22

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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.