Home / 78,814.08-108,763.40-43,004.22

Finding the Fourth Proportional to 78,814.08, 108,763.40 and 43,004.22

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Solution

The fourth proportional to 78,814.08, 108,763.40 and 43,004.22 is: 59,345.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,814.08 : 108,763.40 = 43,004.22 : x
  2. Step 2: Convert to fraction form
    78,814.08/108,763.40 = 43,004.22/x
  3. Step 3: Cross multiply
    78,814.08x = 108,763.40 × 43,004.22
  4. Step 4: Simplify right side
    78,814.08x = 4,677,284,966.53
  5. Step 5: Solve for x
    x = 4,677,284,966.53/78,814.08
  6. Step 6: Final answer
    x = 59,345.80

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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.