Home / 55,416.00-83,138.69-19,880.81

Finding the Fourth Proportional to 55,416.00, 83,138.69 and 19,880.81

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Solution

The fourth proportional to 55,416.00, 83,138.69 and 19,880.81 is: 29,826.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,416.00 : 83,138.69 = 19,880.81 : x
  2. Step 2: Convert to fraction form
    55,416.00/83,138.69 = 19,880.81/x
  3. Step 3: Cross multiply
    55,416.00x = 83,138.69 × 19,880.81
  4. Step 4: Simplify right side
    55,416.00x = 1,652,864,801.14
  5. Step 5: Solve for x
    x = 1,652,864,801.14/55,416.00
  6. Step 6: Final answer
    x = 29,826.49

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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.