Home / 78,998.29-109,018.03-43,188.30

Finding the Fourth Proportional to 78,998.29, 109,018.03 and 43,188.30

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Solution

The fourth proportional to 78,998.29, 109,018.03 and 43,188.30 is: 59,600.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,998.29 : 109,018.03 = 43,188.30 : x
  2. Step 2: Convert to fraction form
    78,998.29/109,018.03 = 43,188.30/x
  3. Step 3: Cross multiply
    78,998.29x = 109,018.03 × 43,188.30
  4. Step 4: Simplify right side
    78,998.29x = 4,708,303,169.11
  5. Step 5: Solve for x
    x = 4,708,303,169.11/78,998.29
  6. Step 6: Final answer
    x = 59,600.06

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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.