Home / 55,765.29-76,921-33,088.18

Finding the Fourth Proportional to 55,765.29, 76,921 and 33,088.18

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Solution

The fourth proportional to 55,765.29, 76,921 and 33,088.18 is: 45,640.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,765.29 : 76,921 = 33,088.18 : x
  2. Step 2: Convert to fraction form
    55,765.29/76,921 = 33,088.18/x
  3. Step 3: Cross multiply
    55,765.29x = 76,921 × 33,088.18
  4. Step 4: Simplify right side
    55,765.29x = 2,545,175,893.78
  5. Step 5: Solve for x
    x = 2,545,175,893.78/55,765.29
  6. Step 6: Final answer
    x = 45,640.86

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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.