Home / 74,686.14-103,069.34-40,697.32

Finding the Fourth Proportional to 74,686.14, 103,069.34 and 40,697.32

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Solution

The fourth proportional to 74,686.14, 103,069.34 and 40,697.32 is: 56,163.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,686.14 : 103,069.34 = 40,697.32 : x
  2. Step 2: Convert to fraction form
    74,686.14/103,069.34 = 40,697.32/x
  3. Step 3: Cross multiply
    74,686.14x = 103,069.34 × 40,697.32
  4. Step 4: Simplify right side
    74,686.14x = 4,194,645,912.17
  5. Step 5: Solve for x
    x = 4,194,645,912.17/74,686.14
  6. Step 6: Final answer
    x = 56,163.65

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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.