Home / 64,131.57-96,210.10-19,756.42

Finding the Fourth Proportional to 64,131.57, 96,210.10 and 19,756.42

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Solution

The fourth proportional to 64,131.57, 96,210.10 and 19,756.42 is: 29,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,131.57 : 96,210.10 = 19,756.42 : x
  2. Step 2: Convert to fraction form
    64,131.57/96,210.10 = 19,756.42/x
  3. Step 3: Cross multiply
    64,131.57x = 96,210.10 × 19,756.42
  4. Step 4: Simplify right side
    64,131.57x = 1,900,767,143.84
  5. Step 5: Solve for x
    x = 1,900,767,143.84/64,131.57
  6. Step 6: Final answer
    x = 29,638.56

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1.5x scale

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.