Home / 70,516.10-105,790.36-20,595

Finding the Fourth Proportional to 70,516.10, 105,790.36 and 20,595

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Solution

The fourth proportional to 70,516.10, 105,790.36 and 20,595 is: 30,897.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,516.10 : 105,790.36 = 20,595 : x
  2. Step 2: Convert to fraction form
    70,516.10/105,790.36 = 20,595/x
  3. Step 3: Cross multiply
    70,516.10x = 105,790.36 × 20,595
  4. Step 4: Simplify right side
    70,516.10x = 2,178,752,464.20
  5. Step 5: Solve for x
    x = 2,178,752,464.20/70,516.10
  6. Step 6: Final answer
    x = 30,897.23

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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.