Home / 64,571.21-89,151.30-40,408.91

Finding the Fourth Proportional to 64,571.21, 89,151.30 and 40,408.91

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Solution

The fourth proportional to 64,571.21, 89,151.30 and 40,408.91 is: 55,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,571.21 : 89,151.30 = 40,408.91 : x
  2. Step 2: Convert to fraction form
    64,571.21/89,151.30 = 40,408.91/x
  3. Step 3: Cross multiply
    64,571.21x = 89,151.30 × 40,408.91
  4. Step 4: Simplify right side
    64,571.21x = 3,602,506,412.33
  5. Step 5: Solve for x
    x = 3,602,506,412.33/64,571.21
  6. Step 6: Final answer
    x = 55,791.22

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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.