Home / 79,280.64-109,409.40-43,471.26

Finding the Fourth Proportional to 79,280.64, 109,409.40 and 43,471.26

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Solution

The fourth proportional to 79,280.64, 109,409.40 and 43,471.26 is: 59,991.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,280.64 : 109,409.40 = 43,471.26 : x
  2. Step 2: Convert to fraction form
    79,280.64/109,409.40 = 43,471.26/x
  3. Step 3: Cross multiply
    79,280.64x = 109,409.40 × 43,471.26
  4. Step 4: Simplify right side
    79,280.64x = 4,756,164,473.84
  5. Step 5: Solve for x
    x = 4,756,164,473.84/79,280.64
  6. Step 6: Final answer
    x = 59,991.50

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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.