Home / 78,284.21-108,032.45-42,474.51

Finding the Fourth Proportional to 78,284.21, 108,032.45 and 42,474.51

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Solution

The fourth proportional to 78,284.21, 108,032.45 and 42,474.51 is: 58,614.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,284.21 : 108,032.45 = 42,474.51 : x
  2. Step 2: Convert to fraction form
    78,284.21/108,032.45 = 42,474.51/x
  3. Step 3: Cross multiply
    78,284.21x = 108,032.45 × 42,474.51
  4. Step 4: Simplify right side
    78,284.21x = 4,588,625,165.48
  5. Step 5: Solve for x
    x = 4,588,625,165.48/78,284.21
  6. Step 6: Final answer
    x = 58,614.96

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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.