Home / 77,701.23-107,228.12-45,885.83

Finding the Fourth Proportional to 77,701.23, 107,228.12 and 45,885.83

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Solution

The fourth proportional to 77,701.23, 107,228.12 and 45,885.83 is: 63,322.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,701.23 : 107,228.12 = 45,885.83 : x
  2. Step 2: Convert to fraction form
    77,701.23/107,228.12 = 45,885.83/x
  3. Step 3: Cross multiply
    77,701.23x = 107,228.12 × 45,885.83
  4. Step 4: Simplify right side
    77,701.23x = 4,920,250,519.97
  5. Step 5: Solve for x
    x = 4,920,250,519.97/77,701.23
  6. Step 6: Final answer
    x = 63,322.69

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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.