Home / 74,111.23-102,273.24-40,119.40

Finding the Fourth Proportional to 74,111.23, 102,273.24 and 40,119.40

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Solution

The fourth proportional to 74,111.23, 102,273.24 and 40,119.40 is: 55,364.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,111.23 : 102,273.24 = 40,119.40 : x
  2. Step 2: Convert to fraction form
    74,111.23/102,273.24 = 40,119.40/x
  3. Step 3: Cross multiply
    74,111.23x = 102,273.24 × 40,119.40
  4. Step 4: Simplify right side
    74,111.23x = 4,103,141,024.86
  5. Step 5: Solve for x
    x = 4,103,141,024.86/74,111.23
  6. Step 6: Final answer
    x = 55,364.63

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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.