Home / 70,106.24-105,103.52-40,490.56

Finding the Fourth Proportional to 70,106.24, 105,103.52 and 40,490.56

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Solution

The fourth proportional to 70,106.24, 105,103.52 and 40,490.56 is: 60,703.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,106.24 : 105,103.52 = 40,490.56 : x
  2. Step 2: Convert to fraction form
    70,106.24/105,103.52 = 40,490.56/x
  3. Step 3: Cross multiply
    70,106.24x = 105,103.52 × 40,490.56
  4. Step 4: Simplify right side
    70,106.24x = 4,255,700,382.77
  5. Step 5: Solve for x
    x = 4,255,700,382.77/70,106.24
  6. Step 6: Final answer
    x = 60,703.59

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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.