Home / 51,651.09-71,266.91-30,432.33

Finding the Fourth Proportional to 51,651.09, 71,266.91 and 30,432.33

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Solution

The fourth proportional to 51,651.09, 71,266.91 and 30,432.33 is: 41,989.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,651.09 : 71,266.91 = 30,432.33 : x
  2. Step 2: Convert to fraction form
    51,651.09/71,266.91 = 30,432.33/x
  3. Step 3: Cross multiply
    51,651.09x = 71,266.91 × 30,432.33
  4. Step 4: Simplify right side
    51,651.09x = 2,168,817,971.04
  5. Step 5: Solve for x
    x = 2,168,817,971.04/51,651.09
  6. Step 6: Final answer
    x = 41,989.78

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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.