Home / 74,697.48-103,081.50-40,707.36

Finding the Fourth Proportional to 74,697.48, 103,081.50 and 40,707.36

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Solution

The fourth proportional to 74,697.48, 103,081.50 and 40,707.36 is: 56,175.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,697.48 : 103,081.50 = 40,707.36 : x
  2. Step 2: Convert to fraction form
    74,697.48/103,081.50 = 40,707.36/x
  3. Step 3: Cross multiply
    74,697.48x = 103,081.50 × 40,707.36
  4. Step 4: Simplify right side
    74,697.48x = 4,196,175,729.84
  5. Step 5: Solve for x
    x = 4,196,175,729.84/74,697.48
  6. Step 6: Final answer
    x = 56,175.60

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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.