Home / 70,455.24-105,728.67-30,513.22

Finding the Fourth Proportional to 70,455.24, 105,728.67 and 30,513.22

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Solution

The fourth proportional to 70,455.24, 105,728.67 and 30,513.22 is: 45,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,455.24 : 105,728.67 = 30,513.22 : x
  2. Step 2: Convert to fraction form
    70,455.24/105,728.67 = 30,513.22/x
  3. Step 3: Cross multiply
    70,455.24x = 105,728.67 × 30,513.22
  4. Step 4: Simplify right side
    70,455.24x = 3,226,122,432.34
  5. Step 5: Solve for x
    x = 3,226,122,432.34/70,455.24
  6. Step 6: Final answer
    x = 45,789.68

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1.5x scale

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.