Home / 49,689.28-74,534.64-14,620.96

Finding the Fourth Proportional to 49,689.28, 74,534.64 and 14,620.96

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Solution

The fourth proportional to 49,689.28, 74,534.64 and 14,620.96 is: 21,931.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,689.28 : 74,534.64 = 14,620.96 : x
  2. Step 2: Convert to fraction form
    49,689.28/74,534.64 = 14,620.96/x
  3. Step 3: Cross multiply
    49,689.28x = 74,534.64 × 14,620.96
  4. Step 4: Simplify right side
    49,689.28x = 1,089,767,990.05
  5. Step 5: Solve for x
    x = 1,089,767,990.05/49,689.28
  6. Step 6: Final answer
    x = 21,931.65

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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.