Home / 77,719.77-107,250.89-43,730.16

Finding the Fourth Proportional to 77,719.77, 107,250.89 and 43,730.16

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Solution

The fourth proportional to 77,719.77, 107,250.89 and 43,730.16 is: 60,346.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,719.77 : 107,250.89 = 43,730.16 : x
  2. Step 2: Convert to fraction form
    77,719.77/107,250.89 = 43,730.16/x
  3. Step 3: Cross multiply
    77,719.77x = 107,250.89 × 43,730.16
  4. Step 4: Simplify right side
    77,719.77x = 4,690,098,361.19
  5. Step 5: Solve for x
    x = 4,690,098,361.19/77,719.77
  6. Step 6: Final answer
    x = 60,346.27

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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.