Home / 55,788.12-76,989.18-30,639.24

Finding the Fourth Proportional to 55,788.12, 76,989.18 and 30,639.24

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Solution

The fourth proportional to 55,788.12, 76,989.18 and 30,639.24 is: 42,283.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,788.12 : 76,989.18 = 30,639.24 : x
  2. Step 2: Convert to fraction form
    55,788.12/76,989.18 = 30,639.24/x
  3. Step 3: Cross multiply
    55,788.12x = 76,989.18 × 30,639.24
  4. Step 4: Simplify right side
    55,788.12x = 2,358,889,963.42
  5. Step 5: Solve for x
    x = 2,358,889,963.42/55,788.12
  6. Step 6: Final answer
    x = 42,283.02

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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.