Home / 70,465.28-105,736.19-40,904.33

Finding the Fourth Proportional to 70,465.28, 105,736.19 and 40,904.33

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Solution

The fourth proportional to 70,465.28, 105,736.19 and 40,904.33 is: 61,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,465.28 : 105,736.19 = 40,904.33 : x
  2. Step 2: Convert to fraction form
    70,465.28/105,736.19 = 40,904.33/x
  3. Step 3: Cross multiply
    70,465.28x = 105,736.19 × 40,904.33
  4. Step 4: Simplify right side
    70,465.28x = 4,325,067,275.50
  5. Step 5: Solve for x
    x = 4,325,067,275.50/70,465.28
  6. Step 6: Final answer
    x = 61,378.70

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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.