Home / 51,343.99-70,825.13-30,911.83

Finding the Fourth Proportional to 51,343.99, 70,825.13 and 30,911.83

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Solution

The fourth proportional to 51,343.99, 70,825.13 and 30,911.83 is: 42,640.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,343.99 : 70,825.13 = 30,911.83 : x
  2. Step 2: Convert to fraction form
    51,343.99/70,825.13 = 30,911.83/x
  3. Step 3: Cross multiply
    51,343.99x = 70,825.13 × 30,911.83
  4. Step 4: Simplify right side
    51,343.99x = 2,189,333,869.60
  5. Step 5: Solve for x
    x = 2,189,333,869.60/51,343.99
  6. Step 6: Final answer
    x = 42,640.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.