Home / 51,013.21-70,351.15-31,886.89

Finding the Fourth Proportional to 51,013.21, 70,351.15 and 31,886.89

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Solution

The fourth proportional to 51,013.21, 70,351.15 and 31,886.89 is: 43,974.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,013.21 : 70,351.15 = 31,886.89 : x
  2. Step 2: Convert to fraction form
    51,013.21/70,351.15 = 31,886.89/x
  3. Step 3: Cross multiply
    51,013.21x = 70,351.15 × 31,886.89
  4. Step 4: Simplify right side
    51,013.21x = 2,243,279,381.42
  5. Step 5: Solve for x
    x = 2,243,279,381.42/51,013.21
  6. Step 6: Final answer
    x = 43,974.48

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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.