Home / 64,491.12-89,010.36-36,195.12

Finding the Fourth Proportional to 64,491.12, 89,010.36 and 36,195.12

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Solution

The fourth proportional to 64,491.12, 89,010.36 and 36,195.12 is: 49,956.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,491.12 : 89,010.36 = 36,195.12 : x
  2. Step 2: Convert to fraction form
    64,491.12/89,010.36 = 36,195.12/x
  3. Step 3: Cross multiply
    64,491.12x = 89,010.36 × 36,195.12
  4. Step 4: Simplify right side
    64,491.12x = 3,221,740,661.44
  5. Step 5: Solve for x
    x = 3,221,740,661.44/64,491.12
  6. Step 6: Final answer
    x = 49,956.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.