Home / 72,919.32-109,384.34-26,172.60

Finding the Fourth Proportional to 72,919.32, 109,384.34 and 26,172.60

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Solution

The fourth proportional to 72,919.32, 109,384.34 and 26,172.60 is: 39,260.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,919.32 : 109,384.34 = 26,172.60 : x
  2. Step 2: Convert to fraction form
    72,919.32/109,384.34 = 26,172.60/x
  3. Step 3: Cross multiply
    72,919.32x = 109,384.34 × 26,172.60
  4. Step 4: Simplify right side
    72,919.32x = 2,862,872,577.08
  5. Step 5: Solve for x
    x = 2,862,872,577.08/72,919.32
  6. Step 6: Final answer
    x = 39,260.82

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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.