Home / 56,029.78-77,319.77-30,536.95

Finding the Fourth Proportional to 56,029.78, 77,319.77 and 30,536.95

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Solution

The fourth proportional to 56,029.78, 77,319.77 and 30,536.95 is: 42,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,029.78 : 77,319.77 = 30,536.95 : x
  2. Step 2: Convert to fraction form
    56,029.78/77,319.77 = 30,536.95/x
  3. Step 3: Cross multiply
    56,029.78x = 77,319.77 × 30,536.95
  4. Step 4: Simplify right side
    56,029.78x = 2,361,109,797.82
  5. Step 5: Solve for x
    x = 2,361,109,797.82/56,029.78
  6. Step 6: Final answer
    x = 42,140.27

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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.