Home / 88,437.78-122,187.23-61,699.64

Finding the Fourth Proportional to 88,437.78, 122,187.23 and 61,699.64

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Solution

The fourth proportional to 88,437.78, 122,187.23 and 61,699.64 is: 85,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,437.78 : 122,187.23 = 61,699.64 : x
  2. Step 2: Convert to fraction form
    88,437.78/122,187.23 = 61,699.64/x
  3. Step 3: Cross multiply
    88,437.78x = 122,187.23 × 61,699.64
  4. Step 4: Simplify right side
    88,437.78x = 7,538,907,184.16
  5. Step 5: Solve for x
    x = 7,538,907,184.16/88,437.78
  6. Step 6: Final answer
    x = 85,245.32

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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.