Home / 85,793.04-128,514.36-44,152.56

Finding the Fourth Proportional to 85,793.04, 128,514.36 and 44,152.56

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Solution

The fourth proportional to 85,793.04, 128,514.36 and 44,152.56 is: 66,138.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,793.04 : 128,514.36 = 44,152.56 : x
  2. Step 2: Convert to fraction form
    85,793.04/128,514.36 = 44,152.56/x
  3. Step 3: Cross multiply
    85,793.04x = 128,514.36 × 44,152.56
  4. Step 4: Simplify right side
    85,793.04x = 5,674,237,990.76
  5. Step 5: Solve for x
    x = 5,674,237,990.76/85,793.04
  6. Step 6: Final answer
    x = 66,138.68

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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.