Home / 51,437.09-70,990.74-31,290.06

Finding the Fourth Proportional to 51,437.09, 70,990.74 and 31,290.06

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Solution

The fourth proportional to 51,437.09, 70,990.74 and 31,290.06 is: 43,184.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,437.09 : 70,990.74 = 31,290.06 : x
  2. Step 2: Convert to fraction form
    51,437.09/70,990.74 = 31,290.06/x
  3. Step 3: Cross multiply
    51,437.09x = 70,990.74 × 31,290.06
  4. Step 4: Simplify right side
    51,437.09x = 2,221,304,514.04
  5. Step 5: Solve for x
    x = 2,221,304,514.04/51,437.09
  6. Step 6: Final answer
    x = 43,184.88

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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.