Home / 74,078.17-102,227.09-40,085.91

Finding the Fourth Proportional to 74,078.17, 102,227.09 and 40,085.91

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Solution

The fourth proportional to 74,078.17, 102,227.09 and 40,085.91 is: 55,318.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,078.17 : 102,227.09 = 40,085.91 : x
  2. Step 2: Convert to fraction form
    74,078.17/102,227.09 = 40,085.91/x
  3. Step 3: Cross multiply
    74,078.17x = 102,227.09 × 40,085.91
  4. Step 4: Simplify right side
    74,078.17x = 4,097,865,929.30
  5. Step 5: Solve for x
    x = 4,097,865,929.30/74,078.17
  6. Step 6: Final answer
    x = 55,318.13

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1.5x scale

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.