Home / 72,508.08-108,633.38-30,295.24

Finding the Fourth Proportional to 72,508.08, 108,633.38 and 30,295.24

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Solution

The fourth proportional to 72,508.08, 108,633.38 and 30,295.24 is: 45,389.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,508.08 : 108,633.38 = 30,295.24 : x
  2. Step 2: Convert to fraction form
    72,508.08/108,633.38 = 30,295.24/x
  3. Step 3: Cross multiply
    72,508.08x = 108,633.38 × 30,295.24
  4. Step 4: Simplify right side
    72,508.08x = 3,291,074,319.11
  5. Step 5: Solve for x
    x = 3,291,074,319.11/72,508.08
  6. Step 6: Final answer
    x = 45,389.07

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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.