Home / 40,156.11-55,421.96-38,384.37

Finding the Fourth Proportional to 40,156.11, 55,421.96 and 38,384.37

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Solution

The fourth proportional to 40,156.11, 55,421.96 and 38,384.37 is: 52,976.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,156.11 : 55,421.96 = 38,384.37 : x
  2. Step 2: Convert to fraction form
    40,156.11/55,421.96 = 38,384.37/x
  3. Step 3: Cross multiply
    40,156.11x = 55,421.96 × 38,384.37
  4. Step 4: Simplify right side
    40,156.11x = 2,127,336,826.84
  5. Step 5: Solve for x
    x = 2,127,336,826.84/40,156.11
  6. Step 6: Final answer
    x = 52,976.67

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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.