Home / 48,121.02-72,165.18-18,536.40

Finding the Fourth Proportional to 48,121.02, 72,165.18 and 18,536.40

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Solution

The fourth proportional to 48,121.02, 72,165.18 and 18,536.40 is: 27,798.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,121.02 : 72,165.18 = 18,536.40 : x
  2. Step 2: Convert to fraction form
    48,121.02/72,165.18 = 18,536.40/x
  3. Step 3: Cross multiply
    48,121.02x = 72,165.18 × 18,536.40
  4. Step 4: Simplify right side
    48,121.02x = 1,337,682,642.55
  5. Step 5: Solve for x
    x = 1,337,682,642.55/48,121.02
  6. Step 6: Final answer
    x = 27,798.30

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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.