Home / 72,824.22-109,278.81-30,701.70

Finding the Fourth Proportional to 72,824.22, 109,278.81 and 30,701.70

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Solution

The fourth proportional to 72,824.22, 109,278.81 and 30,701.70 is: 46,070.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,824.22 : 109,278.81 = 30,701.70 : x
  2. Step 2: Convert to fraction form
    72,824.22/109,278.81 = 30,701.70/x
  3. Step 3: Cross multiply
    72,824.22x = 109,278.81 × 30,701.70
  4. Step 4: Simplify right side
    72,824.22x = 3,355,045,240.98
  5. Step 5: Solve for x
    x = 3,355,045,240.98/72,824.22
  6. Step 6: Final answer
    x = 46,070.46

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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.