Home / 53,788.42-74,215.77-31,126.84

Finding the Fourth Proportional to 53,788.42, 74,215.77 and 31,126.84

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Solution

The fourth proportional to 53,788.42, 74,215.77 and 31,126.84 is: 42,947.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,788.42 : 74,215.77 = 31,126.84 : x
  2. Step 2: Convert to fraction form
    53,788.42/74,215.77 = 31,126.84/x
  3. Step 3: Cross multiply
    53,788.42x = 74,215.77 × 31,126.84
  4. Step 4: Simplify right side
    53,788.42x = 2,310,102,398.27
  5. Step 5: Solve for x
    x = 2,310,102,398.27/53,788.42
  6. Step 6: Final answer
    x = 42,947.95

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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.