Home / 70,164.16-96,826.64-39,949.50

Finding the Fourth Proportional to 70,164.16, 96,826.64 and 39,949.50

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Solution

The fourth proportional to 70,164.16, 96,826.64 and 39,949.50 is: 55,130.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,164.16 : 96,826.64 = 39,949.50 : x
  2. Step 2: Convert to fraction form
    70,164.16/96,826.64 = 39,949.50/x
  3. Step 3: Cross multiply
    70,164.16x = 96,826.64 × 39,949.50
  4. Step 4: Simplify right side
    70,164.16x = 3,868,175,698.10
  5. Step 5: Solve for x
    x = 3,868,175,698.10/70,164.16
  6. Step 6: Final answer
    x = 55,130.36

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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.