Home / 56,435.58-77,879.91-31,284.54

Finding the Fourth Proportional to 56,435.58, 77,879.91 and 31,284.54

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Solution

The fourth proportional to 56,435.58, 77,879.91 and 31,284.54 is: 43,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,435.58 : 77,879.91 = 31,284.54 : x
  2. Step 2: Convert to fraction form
    56,435.58/77,879.91 = 31,284.54/x
  3. Step 3: Cross multiply
    56,435.58x = 77,879.91 × 31,284.54
  4. Step 4: Simplify right side
    56,435.58x = 2,436,437,159.59
  5. Step 5: Solve for x
    x = 2,436,437,159.59/56,435.58
  6. Step 6: Final answer
    x = 43,172.01

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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.