Home / 51,531.14-77,307.81-15,991.76

Finding the Fourth Proportional to 51,531.14, 77,307.81 and 15,991.76

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Solution

The fourth proportional to 51,531.14, 77,307.81 and 15,991.76 is: 23,991.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,531.14 : 77,307.81 = 15,991.76 : x
  2. Step 2: Convert to fraction form
    51,531.14/77,307.81 = 15,991.76/x
  3. Step 3: Cross multiply
    51,531.14x = 77,307.81 × 15,991.76
  4. Step 4: Simplify right side
    51,531.14x = 1,236,287,943.65
  5. Step 5: Solve for x
    x = 1,236,287,943.65/51,531.14
  6. Step 6: Final answer
    x = 23,991.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.