Home / 74,143.06-102,317.92-40,151.57

Finding the Fourth Proportional to 74,143.06, 102,317.92 and 40,151.57

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Solution

The fourth proportional to 74,143.06, 102,317.92 and 40,151.57 is: 55,409.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,143.06 : 102,317.92 = 40,151.57 : x
  2. Step 2: Convert to fraction form
    74,143.06/102,317.92 = 40,151.57/x
  3. Step 3: Cross multiply
    74,143.06x = 102,317.92 × 40,151.57
  4. Step 4: Simplify right side
    74,143.06x = 4,108,225,547.86
  5. Step 5: Solve for x
    x = 4,108,225,547.86/74,143.06
  6. Step 6: Final answer
    x = 55,409.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.