Home / 55,458.21-76,532.90-30,307.71

Finding the Fourth Proportional to 55,458.21, 76,532.90 and 30,307.71

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Solution

The fourth proportional to 55,458.21, 76,532.90 and 30,307.71 is: 41,824.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,458.21 : 76,532.90 = 30,307.71 : x
  2. Step 2: Convert to fraction form
    55,458.21/76,532.90 = 30,307.71/x
  3. Step 3: Cross multiply
    55,458.21x = 76,532.90 × 30,307.71
  4. Step 4: Simplify right side
    55,458.21x = 2,319,536,787.12
  5. Step 5: Solve for x
    x = 2,319,536,787.12/55,458.21
  6. Step 6: Final answer
    x = 41,824.95

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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.