Home / 60,582.12-90,888.36-21,139.56

Finding the Fourth Proportional to 60,582.12, 90,888.36 and 21,139.56

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Solution

The fourth proportional to 60,582.12, 90,888.36 and 21,139.56 is: 31,714.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,582.12 : 90,888.36 = 21,139.56 : x
  2. Step 2: Convert to fraction form
    60,582.12/90,888.36 = 21,139.56/x
  3. Step 3: Cross multiply
    60,582.12x = 90,888.36 × 21,139.56
  4. Step 4: Simplify right side
    60,582.12x = 1,921,339,939.52
  5. Step 5: Solve for x
    x = 1,921,339,939.52/60,582.12
  6. Step 6: Final answer
    x = 31,714.64

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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.