Home / 64,969.19-89,658.95-38,131.05

Finding the Fourth Proportional to 64,969.19, 89,658.95 and 38,131.05

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Solution

The fourth proportional to 64,969.19, 89,658.95 and 38,131.05 is: 52,621.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,969.19 : 89,658.95 = 38,131.05 : x
  2. Step 2: Convert to fraction form
    64,969.19/89,658.95 = 38,131.05/x
  3. Step 3: Cross multiply
    64,969.19x = 89,658.95 × 38,131.05
  4. Step 4: Simplify right side
    64,969.19x = 3,418,790,265.45
  5. Step 5: Solve for x
    x = 3,418,790,265.45/64,969.19
  6. Step 6: Final answer
    x = 52,621.72

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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.