Home / 56,390.94-77,819.45-30,898.95

Finding the Fourth Proportional to 56,390.94, 77,819.45 and 30,898.95

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Solution

The fourth proportional to 56,390.94, 77,819.45 and 30,898.95 is: 42,640.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,390.94 : 77,819.45 = 30,898.95 : x
  2. Step 2: Convert to fraction form
    56,390.94/77,819.45 = 30,898.95/x
  3. Step 3: Cross multiply
    56,390.94x = 77,819.45 × 30,898.95
  4. Step 4: Simplify right side
    56,390.94x = 2,404,539,294.58
  5. Step 5: Solve for x
    x = 2,404,539,294.58/56,390.94
  6. Step 6: Final answer
    x = 42,640.53

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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.