Home / 74,701.58-103,085.56-40,709.37

Finding the Fourth Proportional to 74,701.58, 103,085.56 and 40,709.37

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Solution

The fourth proportional to 74,701.58, 103,085.56 and 40,709.37 is: 56,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,701.58 : 103,085.56 = 40,709.37 : x
  2. Step 2: Convert to fraction form
    74,701.58/103,085.56 = 40,709.37/x
  3. Step 3: Cross multiply
    74,701.58x = 103,085.56 × 40,709.37
  4. Step 4: Simplify right side
    74,701.58x = 4,196,548,203.70
  5. Step 5: Solve for x
    x = 4,196,548,203.70/74,701.58
  6. Step 6: Final answer
    x = 56,177.50

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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.