Home / 55,910.21-77,152.64-30,416.36

Finding the Fourth Proportional to 55,910.21, 77,152.64 and 30,416.36

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Solution

The fourth proportional to 55,910.21, 77,152.64 and 30,416.36 is: 41,972.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,910.21 : 77,152.64 = 30,416.36 : x
  2. Step 2: Convert to fraction form
    55,910.21/77,152.64 = 30,416.36/x
  3. Step 3: Cross multiply
    55,910.21x = 77,152.64 × 30,416.36
  4. Step 4: Simplify right side
    55,910.21x = 2,346,701,935.35
  5. Step 5: Solve for x
    x = 2,346,701,935.35/55,910.21
  6. Step 6: Final answer
    x = 41,972.69

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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.