Home / 72,192.33-108,386.75-40,624.70

Finding the Fourth Proportional to 72,192.33, 108,386.75 and 40,624.70

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Solution

The fourth proportional to 72,192.33, 108,386.75 and 40,624.70 is: 60,992.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,192.33 : 108,386.75 = 40,624.70 : x
  2. Step 2: Convert to fraction form
    72,192.33/108,386.75 = 40,624.70/x
  3. Step 3: Cross multiply
    72,192.33x = 108,386.75 × 40,624.70
  4. Step 4: Simplify right side
    72,192.33x = 4,403,178,457.67
  5. Step 5: Solve for x
    x = 4,403,178,457.67/72,192.33
  6. Step 6: Final answer
    x = 60,992.33

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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.