Home / 51,171.51-70,621.86-28,514.19

Finding the Fourth Proportional to 51,171.51, 70,621.86 and 28,514.19

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Solution

The fourth proportional to 51,171.51, 70,621.86 and 28,514.19 is: 39,352.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,171.51 : 70,621.86 = 28,514.19 : x
  2. Step 2: Convert to fraction form
    51,171.51/70,621.86 = 28,514.19/x
  3. Step 3: Cross multiply
    51,171.51x = 70,621.86 × 28,514.19
  4. Step 4: Simplify right side
    51,171.51x = 2,013,725,134.19
  5. Step 5: Solve for x
    x = 2,013,725,134.19/51,171.51
  6. Step 6: Final answer
    x = 39,352.47

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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.