Home / 74,474.32-102,776.54-40,485.10

Finding the Fourth Proportional to 74,474.32, 102,776.54 and 40,485.10

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Solution

The fourth proportional to 74,474.32, 102,776.54 and 40,485.10 is: 55,870.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,474.32 : 102,776.54 = 40,485.10 : x
  2. Step 2: Convert to fraction form
    74,474.32/102,776.54 = 40,485.10/x
  3. Step 3: Cross multiply
    74,474.32x = 102,776.54 × 40,485.10
  4. Step 4: Simplify right side
    74,474.32x = 4,160,918,499.55
  5. Step 5: Solve for x
    x = 4,160,918,499.55/74,474.32
  6. Step 6: Final answer
    x = 55,870.51

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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.