Home / 49,378.37-74,051.10-21,280.88

Finding the Fourth Proportional to 49,378.37, 74,051.10 and 21,280.88

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Solution

The fourth proportional to 49,378.37, 74,051.10 and 21,280.88 is: 31,914.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,378.37 : 74,051.10 = 21,280.88 : x
  2. Step 2: Convert to fraction form
    49,378.37/74,051.10 = 21,280.88/x
  3. Step 3: Cross multiply
    49,378.37x = 74,051.10 × 21,280.88
  4. Step 4: Simplify right side
    49,378.37x = 1,575,872,202.71
  5. Step 5: Solve for x
    x = 1,575,872,202.71/49,378.37
  6. Step 6: Final answer
    x = 31,914.22

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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.