Home / 55,353.36-83,029.32-13,800.72

Finding the Fourth Proportional to 55,353.36, 83,029.32 and 13,800.72

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Solution

The fourth proportional to 55,353.36, 83,029.32 and 13,800.72 is: 20,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,353.36 : 83,029.32 = 13,800.72 : x
  2. Step 2: Convert to fraction form
    55,353.36/83,029.32 = 13,800.72/x
  3. Step 3: Cross multiply
    55,353.36x = 83,029.32 × 13,800.72
  4. Step 4: Simplify right side
    55,353.36x = 1,145,864,397.11
  5. Step 5: Solve for x
    x = 1,145,864,397.11/55,353.36
  6. Step 6: Final answer
    x = 20,700.90

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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.