Home / 74,680.14-103,059.78-40,690.23

Finding the Fourth Proportional to 74,680.14, 103,059.78 and 40,690.23

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Solution

The fourth proportional to 74,680.14, 103,059.78 and 40,690.23 is: 56,153.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,680.14 : 103,059.78 = 40,690.23 : x
  2. Step 2: Convert to fraction form
    74,680.14/103,059.78 = 40,690.23/x
  3. Step 3: Cross multiply
    74,680.14x = 103,059.78 × 40,690.23
  4. Step 4: Simplify right side
    74,680.14x = 4,193,526,151.95
  5. Step 5: Solve for x
    x = 4,193,526,151.95/74,680.14
  6. Step 6: Final answer
    x = 56,153.16

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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.