Home / 55,156.30-82,707.10-19,612.28

Finding the Fourth Proportional to 55,156.30, 82,707.10 and 19,612.28

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Solution

The fourth proportional to 55,156.30, 82,707.10 and 19,612.28 is: 29,408.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,156.30 : 82,707.10 = 19,612.28 : x
  2. Step 2: Convert to fraction form
    55,156.30/82,707.10 = 19,612.28/x
  3. Step 3: Cross multiply
    55,156.30x = 82,707.10 × 19,612.28
  4. Step 4: Simplify right side
    55,156.30x = 1,622,074,803.19
  5. Step 5: Solve for x
    x = 1,622,074,803.19/55,156.30
  6. Step 6: Final answer
    x = 29,408.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.