Home / 51,530.56-71,143.80-39,570.64

Finding the Fourth Proportional to 51,530.56, 71,143.80 and 39,570.64

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Solution

The fourth proportional to 51,530.56, 71,143.80 and 39,570.64 is: 54,631.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,530.56 : 71,143.80 = 39,570.64 : x
  2. Step 2: Convert to fraction form
    51,530.56/71,143.80 = 39,570.64/x
  3. Step 3: Cross multiply
    51,530.56x = 71,143.80 × 39,570.64
  4. Step 4: Simplify right side
    51,530.56x = 2,815,205,698.03
  5. Step 5: Solve for x
    x = 2,815,205,698.03/51,530.56
  6. Step 6: Final answer
    x = 54,631.77

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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.