Home / 72,357.12-108,498.66-30,225.71

Finding the Fourth Proportional to 72,357.12, 108,498.66 and 30,225.71

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Solution

The fourth proportional to 72,357.12, 108,498.66 and 30,225.71 is: 45,323.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,357.12 : 108,498.66 = 30,225.71 : x
  2. Step 2: Convert to fraction form
    72,357.12/108,498.66 = 30,225.71/x
  3. Step 3: Cross multiply
    72,357.12x = 108,498.66 × 30,225.71
  4. Step 4: Simplify right side
    72,357.12x = 3,279,448,835.17
  5. Step 5: Solve for x
    x = 3,279,448,835.17/72,357.12
  6. Step 6: Final answer
    x = 45,323.10

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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.