Home / 51,218.19-70,675.38-31,079.97

Finding the Fourth Proportional to 51,218.19, 70,675.38 and 31,079.97

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Solution

The fourth proportional to 51,218.19, 70,675.38 and 31,079.97 is: 42,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,218.19 : 70,675.38 = 31,079.97 : x
  2. Step 2: Convert to fraction form
    51,218.19/70,675.38 = 31,079.97/x
  3. Step 3: Cross multiply
    51,218.19x = 70,675.38 × 31,079.97
  4. Step 4: Simplify right side
    51,218.19x = 2,196,588,690.14
  5. Step 5: Solve for x
    x = 2,196,588,690.14/51,218.19
  6. Step 6: Final answer
    x = 42,886.89

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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.