Home / 64,491.17-89,003.40-35,816.36

Finding the Fourth Proportional to 64,491.17, 89,003.40 and 35,816.36

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Solution

The fourth proportional to 64,491.17, 89,003.40 and 35,816.36 is: 49,429.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,491.17 : 89,003.40 = 35,816.36 : x
  2. Step 2: Convert to fraction form
    64,491.17/89,003.40 = 35,816.36/x
  3. Step 3: Cross multiply
    64,491.17x = 89,003.40 × 35,816.36
  4. Step 4: Simplify right side
    64,491.17x = 3,187,777,370.61
  5. Step 5: Solve for x
    x = 3,187,777,370.61/64,491.17
  6. Step 6: Final answer
    x = 49,429.68

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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.