Home / 55,334.78-76,356.69-31,460.12

Finding the Fourth Proportional to 55,334.78, 76,356.69 and 31,460.12

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Solution

The fourth proportional to 55,334.78, 76,356.69 and 31,460.12 is: 43,411.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,334.78 : 76,356.69 = 31,460.12 : x
  2. Step 2: Convert to fraction form
    55,334.78/76,356.69 = 31,460.12/x
  3. Step 3: Cross multiply
    55,334.78x = 76,356.69 × 31,460.12
  4. Step 4: Simplify right side
    55,334.78x = 2,402,190,630.20
  5. Step 5: Solve for x
    x = 2,402,190,630.20/55,334.78
  6. Step 6: Final answer
    x = 43,411.95

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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.