Home / 55,251.66-76,180.35-42,990.60

Finding the Fourth Proportional to 55,251.66, 76,180.35 and 42,990.60

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Solution

The fourth proportional to 55,251.66, 76,180.35 and 42,990.60 is: 59,274.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,251.66 : 76,180.35 = 42,990.60 : x
  2. Step 2: Convert to fraction form
    55,251.66/76,180.35 = 42,990.60/x
  3. Step 3: Cross multiply
    55,251.66x = 76,180.35 × 42,990.60
  4. Step 4: Simplify right side
    55,251.66x = 3,275,038,954.71
  5. Step 5: Solve for x
    x = 3,275,038,954.71/55,251.66
  6. Step 6: Final answer
    x = 59,274.94

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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.