Home / 78,764.01-108,785.09-57,349.51

Finding the Fourth Proportional to 78,764.01, 108,785.09 and 57,349.51

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Solution

The fourth proportional to 78,764.01, 108,785.09 and 57,349.51 is: 79,208.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,764.01 : 108,785.09 = 57,349.51 : x
  2. Step 2: Convert to fraction form
    78,764.01/108,785.09 = 57,349.51/x
  3. Step 3: Cross multiply
    78,764.01x = 108,785.09 × 57,349.51
  4. Step 4: Simplify right side
    78,764.01x = 6,238,771,606.81
  5. Step 5: Solve for x
    x = 6,238,771,606.81/78,764.01
  6. Step 6: Final answer
    x = 79,208.41

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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.