Home / 56,097.12-77,408.64-30,945

Finding the Fourth Proportional to 56,097.12, 77,408.64 and 30,945

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Solution

The fourth proportional to 56,097.12, 77,408.64 and 30,945 is: 42,701.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,097.12 : 77,408.64 = 30,945 : x
  2. Step 2: Convert to fraction form
    56,097.12/77,408.64 = 30,945/x
  3. Step 3: Cross multiply
    56,097.12x = 77,408.64 × 30,945
  4. Step 4: Simplify right side
    56,097.12x = 2,395,410,364.80
  5. Step 5: Solve for x
    x = 2,395,410,364.80/56,097.12
  6. Step 6: Final answer
    x = 42,701.13

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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.