Home / 85,754.29-118,303.23-51,743.81

Finding the Fourth Proportional to 85,754.29, 118,303.23 and 51,743.81

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Solution

The fourth proportional to 85,754.29, 118,303.23 and 51,743.81 is: 71,383.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,754.29 : 118,303.23 = 51,743.81 : x
  2. Step 2: Convert to fraction form
    85,754.29/118,303.23 = 51,743.81/x
  3. Step 3: Cross multiply
    85,754.29x = 118,303.23 × 51,743.81
  4. Step 4: Simplify right side
    85,754.29x = 6,121,459,855.51
  5. Step 5: Solve for x
    x = 6,121,459,855.51/85,754.29
  6. Step 6: Final answer
    x = 71,383.72

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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.