Home / 70,355.24-105,421.68-56,405.82

Finding the Fourth Proportional to 70,355.24, 105,421.68 and 56,405.82

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Solution

The fourth proportional to 70,355.24, 105,421.68 and 56,405.82 is: 84,519.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,355.24 : 105,421.68 = 56,405.82 : x
  2. Step 2: Convert to fraction form
    70,355.24/105,421.68 = 56,405.82/x
  3. Step 3: Cross multiply
    70,355.24x = 105,421.68 × 56,405.82
  4. Step 4: Simplify right side
    70,355.24x = 5,946,396,306.18
  5. Step 5: Solve for x
    x = 5,946,396,306.18/70,355.24
  6. Step 6: Final answer
    x = 84,519.59

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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.