Home / 49,978.20-74,975.70-14,921.40

Finding the Fourth Proportional to 49,978.20, 74,975.70 and 14,921.40

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Solution

The fourth proportional to 49,978.20, 74,975.70 and 14,921.40 is: 22,384.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,978.20 : 74,975.70 = 14,921.40 : x
  2. Step 2: Convert to fraction form
    49,978.20/74,975.70 = 14,921.40/x
  3. Step 3: Cross multiply
    49,978.20x = 74,975.70 × 14,921.40
  4. Step 4: Simplify right side
    49,978.20x = 1,118,742,409.98
  5. Step 5: Solve for x
    x = 1,118,742,409.98/49,978.20
  6. Step 6: Final answer
    x = 22,384.61

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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.