Home / 70,142.32-105,246.28-40,585.02

Finding the Fourth Proportional to 70,142.32, 105,246.28 and 40,585.02

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Solution

The fourth proportional to 70,142.32, 105,246.28 and 40,585.02 is: 60,896.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,142.32 : 105,246.28 = 40,585.02 : x
  2. Step 2: Convert to fraction form
    70,142.32/105,246.28 = 40,585.02/x
  3. Step 3: Cross multiply
    70,142.32x = 105,246.28 × 40,585.02
  4. Step 4: Simplify right side
    70,142.32x = 4,271,422,378.73
  5. Step 5: Solve for x
    x = 4,271,422,378.73/70,142.32
  6. Step 6: Final answer
    x = 60,896.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.