Home / 98,450.64-135,857.16-56,005.20

Finding the Fourth Proportional to 98,450.64, 135,857.16 and 56,005.20

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Solution

The fourth proportional to 98,450.64, 135,857.16 and 56,005.20 is: 77,284.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,450.64 : 135,857.16 = 56,005.20 : x
  2. Step 2: Convert to fraction form
    98,450.64/135,857.16 = 56,005.20/x
  3. Step 3: Cross multiply
    98,450.64x = 135,857.16 × 56,005.20
  4. Step 4: Simplify right side
    98,450.64x = 7,608,707,417.23
  5. Step 5: Solve for x
    x = 7,608,707,417.23/98,450.64
  6. Step 6: Final answer
    x = 77,284.49

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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.