Home / 72,440.02-108,643.38-19,853.61

Finding the Fourth Proportional to 72,440.02, 108,643.38 and 19,853.61

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Solution

The fourth proportional to 72,440.02, 108,643.38 and 19,853.61 is: 29,775.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,440.02 : 108,643.38 = 19,853.61 : x
  2. Step 2: Convert to fraction form
    72,440.02/108,643.38 = 19,853.61/x
  3. Step 3: Cross multiply
    72,440.02x = 108,643.38 × 19,853.61
  4. Step 4: Simplify right side
    72,440.02x = 2,156,962,813.74
  5. Step 5: Solve for x
    x = 2,156,962,813.74/72,440.02
  6. Step 6: Final answer
    x = 29,775.84

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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.