Home / 51,157.95-76,731.59-13,722.03

Finding the Fourth Proportional to 51,157.95, 76,731.59 and 13,722.03

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Solution

The fourth proportional to 51,157.95, 76,731.59 and 13,722.03 is: 20,581.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,157.95 : 76,731.59 = 13,722.03 : x
  2. Step 2: Convert to fraction form
    51,157.95/76,731.59 = 13,722.03/x
  3. Step 3: Cross multiply
    51,157.95x = 76,731.59 × 13,722.03
  4. Step 4: Simplify right side
    51,157.95x = 1,052,913,111.32
  5. Step 5: Solve for x
    x = 1,052,913,111.32/51,157.95
  6. Step 6: Final answer
    x = 20,581.61

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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.