Home / 51,530.74-71,111.56-28,869.66

Finding the Fourth Proportional to 51,530.74, 71,111.56 and 28,869.66

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Solution

The fourth proportional to 51,530.74, 71,111.56 and 28,869.66 is: 39,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,530.74 : 71,111.56 = 28,869.66 : x
  2. Step 2: Convert to fraction form
    51,530.74/71,111.56 = 28,869.66/x
  3. Step 3: Cross multiply
    51,530.74x = 71,111.56 × 28,869.66
  4. Step 4: Simplify right side
    51,530.74x = 2,052,966,559.27
  5. Step 5: Solve for x
    x = 2,052,966,559.27/51,530.74
  6. Step 6: Final answer
    x = 39,839.65

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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.