Home / 72,249.06-108,303.12-30,141.24

Finding the Fourth Proportional to 72,249.06, 108,303.12 and 30,141.24

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Solution

The fourth proportional to 72,249.06, 108,303.12 and 30,141.24 is: 45,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,249.06 : 108,303.12 = 30,141.24 : x
  2. Step 2: Convert to fraction form
    72,249.06/108,303.12 = 30,141.24/x
  3. Step 3: Cross multiply
    72,249.06x = 108,303.12 × 30,141.24
  4. Step 4: Simplify right side
    72,249.06x = 3,264,390,332.67
  5. Step 5: Solve for x
    x = 3,264,390,332.67/72,249.06
  6. Step 6: Final answer
    x = 45,182.46

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1.5x scale

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.