Home / 51,804.80-71,516.64-30,590.72

Finding the Fourth Proportional to 51,804.80, 71,516.64 and 30,590.72

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Solution

The fourth proportional to 51,804.80, 71,516.64 and 30,590.72 is: 42,230.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,804.80 : 71,516.64 = 30,590.72 : x
  2. Step 2: Convert to fraction form
    51,804.80/71,516.64 = 30,590.72/x
  3. Step 3: Cross multiply
    51,804.80x = 71,516.64 × 30,590.72
  4. Step 4: Simplify right side
    51,804.80x = 2,187,745,509.58
  5. Step 5: Solve for x
    x = 2,187,745,509.58/51,804.80
  6. Step 6: Final answer
    x = 42,230.56

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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.