Home / 77,616.32-107,111.47-43,622.81

Finding the Fourth Proportional to 77,616.32, 107,111.47 and 43,622.81

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Solution

The fourth proportional to 77,616.32, 107,111.47 and 43,622.81 is: 60,200.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,616.32 : 107,111.47 = 43,622.81 : x
  2. Step 2: Convert to fraction form
    77,616.32/107,111.47 = 43,622.81/x
  3. Step 3: Cross multiply
    77,616.32x = 107,111.47 × 43,622.81
  4. Step 4: Simplify right side
    77,616.32x = 4,672,503,463.35
  5. Step 5: Solve for x
    x = 4,672,503,463.35/77,616.32
  6. Step 6: Final answer
    x = 60,200.02

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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.