Home / 51,899.06-77,848.59-20,756.18

Finding the Fourth Proportional to 51,899.06, 77,848.59 and 20,756.18

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Solution

The fourth proportional to 51,899.06, 77,848.59 and 20,756.18 is: 31,134.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,899.06 : 77,848.59 = 20,756.18 : x
  2. Step 2: Convert to fraction form
    51,899.06/77,848.59 = 20,756.18/x
  3. Step 3: Cross multiply
    51,899.06x = 77,848.59 × 20,756.18
  4. Step 4: Simplify right side
    51,899.06x = 1,615,839,619.24
  5. Step 5: Solve for x
    x = 1,615,839,619.24/51,899.06
  6. Step 6: Final answer
    x = 31,134.27

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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.