Home / 40,856.30-56,388.26-38,188.16

Finding the Fourth Proportional to 40,856.30, 56,388.26 and 38,188.16

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Solution

The fourth proportional to 40,856.30, 56,388.26 and 38,188.16 is: 52,705.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,856.30 : 56,388.26 = 38,188.16 : x
  2. Step 2: Convert to fraction form
    40,856.30/56,388.26 = 38,188.16/x
  3. Step 3: Cross multiply
    40,856.30x = 56,388.26 × 38,188.16
  4. Step 4: Simplify right side
    40,856.30x = 2,153,363,704.06
  5. Step 5: Solve for x
    x = 2,153,363,704.06/40,856.30
  6. Step 6: Final answer
    x = 52,705.79

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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.