Home / 74,339.71-102,588.89-40,348.18

Finding the Fourth Proportional to 74,339.71, 102,588.89 and 40,348.18

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Solution

The fourth proportional to 74,339.71, 102,588.89 and 40,348.18 is: 55,680.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,339.71 : 102,588.89 = 40,348.18 : x
  2. Step 2: Convert to fraction form
    74,339.71/102,588.89 = 40,348.18/x
  3. Step 3: Cross multiply
    74,339.71x = 102,588.89 × 40,348.18
  4. Step 4: Simplify right side
    74,339.71x = 4,139,274,898.85
  5. Step 5: Solve for x
    x = 4,139,274,898.85/74,339.71
  6. Step 6: Final answer
    x = 55,680.54

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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.