Home / 68,919.99-95,111.88-38,710.64

Finding the Fourth Proportional to 68,919.99, 95,111.88 and 38,710.64

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Solution

The fourth proportional to 68,919.99, 95,111.88 and 38,710.64 is: 53,421.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,919.99 : 95,111.88 = 38,710.64 : x
  2. Step 2: Convert to fraction form
    68,919.99/95,111.88 = 38,710.64/x
  3. Step 3: Cross multiply
    68,919.99x = 95,111.88 × 38,710.64
  4. Step 4: Simplify right side
    68,919.99x = 3,681,841,746.40
  5. Step 5: Solve for x
    x = 3,681,841,746.40/68,919.99
  6. Step 6: Final answer
    x = 53,421.97

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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.