Home / 72,163.02-108,247.60-19,572.50

Finding the Fourth Proportional to 72,163.02, 108,247.60 and 19,572.50

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Solution

The fourth proportional to 72,163.02, 108,247.60 and 19,572.50 is: 29,359.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,163.02 : 108,247.60 = 19,572.50 : x
  2. Step 2: Convert to fraction form
    72,163.02/108,247.60 = 19,572.50/x
  3. Step 3: Cross multiply
    72,163.02x = 108,247.60 × 19,572.50
  4. Step 4: Simplify right side
    72,163.02x = 2,118,676,151
  5. Step 5: Solve for x
    x = 2,118,676,151/72,163.02
  6. Step 6: Final answer
    x = 29,359.58

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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.