Home / 48,420.05-72,602.12-18,803.31

Finding the Fourth Proportional to 48,420.05, 72,602.12 and 18,803.31

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Solution

The fourth proportional to 48,420.05, 72,602.12 and 18,803.31 is: 28,194.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,420.05 : 72,602.12 = 18,803.31 : x
  2. Step 2: Convert to fraction form
    48,420.05/72,602.12 = 18,803.31/x
  3. Step 3: Cross multiply
    48,420.05x = 72,602.12 × 18,803.31
  4. Step 4: Simplify right side
    48,420.05x = 1,365,160,169.02
  5. Step 5: Solve for x
    x = 1,365,160,169.02/48,420.05
  6. Step 6: Final answer
    x = 28,194.11

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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.