Home / 55,895.00-77,135.40-30,401.55

Finding the Fourth Proportional to 55,895.00, 77,135.40 and 30,401.55

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Solution

The fourth proportional to 55,895.00, 77,135.40 and 30,401.55 is: 41,954.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,895.00 : 77,135.40 = 30,401.55 : x
  2. Step 2: Convert to fraction form
    55,895.00/77,135.40 = 30,401.55/x
  3. Step 3: Cross multiply
    55,895.00x = 77,135.40 × 30,401.55
  4. Step 4: Simplify right side
    55,895.00x = 2,345,035,719.87
  5. Step 5: Solve for x
    x = 2,345,035,719.87/55,895.00
  6. Step 6: Final answer
    x = 41,954.31

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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.