Home / 51,303.07-76,962.70-19,711.87

Finding the Fourth Proportional to 51,303.07, 76,962.70 and 19,711.87

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Solution

The fourth proportional to 51,303.07, 76,962.70 and 19,711.87 is: 29,570.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,303.07 : 76,962.70 = 19,711.87 : x
  2. Step 2: Convert to fraction form
    51,303.07/76,962.70 = 19,711.87/x
  3. Step 3: Cross multiply
    51,303.07x = 76,962.70 × 19,711.87
  4. Step 4: Simplify right side
    51,303.07x = 1,517,078,352.44
  5. Step 5: Solve for x
    x = 1,517,078,352.44/51,303.07
  6. Step 6: Final answer
    x = 29,570.91

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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.