Home / 77,811.47-116,719.46-30,424.64

Finding the Fourth Proportional to 77,811.47, 116,719.46 and 30,424.64

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Solution

The fourth proportional to 77,811.47, 116,719.46 and 30,424.64 is: 45,637.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,811.47 : 116,719.46 = 30,424.64 : x
  2. Step 2: Convert to fraction form
    77,811.47/116,719.46 = 30,424.64/x
  3. Step 3: Cross multiply
    77,811.47x = 116,719.46 × 30,424.64
  4. Step 4: Simplify right side
    77,811.47x = 3,551,147,399.37
  5. Step 5: Solve for x
    x = 3,551,147,399.37/77,811.47
  6. Step 6: Final answer
    x = 45,637.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.