Home / 77,813.28-107,357.40-45,992.88

Finding the Fourth Proportional to 77,813.28, 107,357.40 and 45,992.88

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Solution

The fourth proportional to 77,813.28, 107,357.40 and 45,992.88 is: 63,455.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,813.28 : 107,357.40 = 45,992.88 : x
  2. Step 2: Convert to fraction form
    77,813.28/107,357.40 = 45,992.88/x
  3. Step 3: Cross multiply
    77,813.28x = 107,357.40 × 45,992.88
  4. Step 4: Simplify right side
    77,813.28x = 4,937,676,015.31
  5. Step 5: Solve for x
    x = 4,937,676,015.31/77,813.28
  6. Step 6: Final answer
    x = 63,455.44

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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.