Home / 49,681.36-68,589.48-30,828.88

Finding the Fourth Proportional to 49,681.36, 68,589.48 and 30,828.88

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Solution

The fourth proportional to 49,681.36, 68,589.48 and 30,828.88 is: 42,561.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,681.36 : 68,589.48 = 30,828.88 : x
  2. Step 2: Convert to fraction form
    49,681.36/68,589.48 = 30,828.88/x
  3. Step 3: Cross multiply
    49,681.36x = 68,589.48 × 30,828.88
  4. Step 4: Simplify right side
    49,681.36x = 2,114,536,848.18
  5. Step 5: Solve for x
    x = 2,114,536,848.18/49,681.36
  6. Step 6: Final answer
    x = 42,561.98

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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.