Home / 56,012.11-77,297.60-30,519.68

Finding the Fourth Proportional to 56,012.11, 77,297.60 and 30,519.68

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Solution

The fourth proportional to 56,012.11, 77,297.60 and 30,519.68 is: 42,117.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,012.11 : 77,297.60 = 30,519.68 : x
  2. Step 2: Convert to fraction form
    56,012.11/77,297.60 = 30,519.68/x
  3. Step 3: Cross multiply
    56,012.11x = 77,297.60 × 30,519.68
  4. Step 4: Simplify right side
    56,012.11x = 2,359,098,016.77
  5. Step 5: Solve for x
    x = 2,359,098,016.77/56,012.11
  6. Step 6: Final answer
    x = 42,117.64

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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.