Home / 55,950.64-83,872.40-20,880.88

Finding the Fourth Proportional to 55,950.64, 83,872.40 and 20,880.88

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Solution

The fourth proportional to 55,950.64, 83,872.40 and 20,880.88 is: 31,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,950.64 : 83,872.40 = 20,880.88 : x
  2. Step 2: Convert to fraction form
    55,950.64/83,872.40 = 20,880.88/x
  3. Step 3: Cross multiply
    55,950.64x = 83,872.40 × 20,880.88
  4. Step 4: Simplify right side
    55,950.64x = 1,751,329,519.71
  5. Step 5: Solve for x
    x = 1,751,329,519.71/55,950.64
  6. Step 6: Final answer
    x = 31,301.33

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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.