Home / 50,720.11-69,990.69-30,583.51

Finding the Fourth Proportional to 50,720.11, 69,990.69 and 30,583.51

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Solution

The fourth proportional to 50,720.11, 69,990.69 and 30,583.51 is: 42,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,720.11 : 69,990.69 = 30,583.51 : x
  2. Step 2: Convert to fraction form
    50,720.11/69,990.69 = 30,583.51/x
  3. Step 3: Cross multiply
    50,720.11x = 69,990.69 × 30,583.51
  4. Step 4: Simplify right side
    50,720.11x = 2,140,560,967.52
  5. Step 5: Solve for x
    x = 2,140,560,967.52/50,720.11
  6. Step 6: Final answer
    x = 42,203.40

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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.