Home / 74,341.92-102,589.56-40,348.80

Finding the Fourth Proportional to 74,341.92, 102,589.56 and 40,348.80

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Solution

The fourth proportional to 74,341.92, 102,589.56 and 40,348.80 is: 55,680.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,341.92 : 102,589.56 = 40,348.80 : x
  2. Step 2: Convert to fraction form
    74,341.92/102,589.56 = 40,348.80/x
  3. Step 3: Cross multiply
    74,341.92x = 102,589.56 × 40,348.80
  4. Step 4: Simplify right side
    74,341.92x = 4,139,365,638.53
  5. Step 5: Solve for x
    x = 4,139,365,638.53/74,341.92
  6. Step 6: Final answer
    x = 55,680.10

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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.