Home / 78,434.12-117,585.09-34,027.46

Finding the Fourth Proportional to 78,434.12, 117,585.09 and 34,027.46

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Solution

The fourth proportional to 78,434.12, 117,585.09 and 34,027.46 is: 51,012.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,434.12 : 117,585.09 = 34,027.46 : x
  2. Step 2: Convert to fraction form
    78,434.12/117,585.09 = 34,027.46/x
  3. Step 3: Cross multiply
    78,434.12x = 117,585.09 × 34,027.46
  4. Step 4: Simplify right side
    78,434.12x = 4,001,121,946.57
  5. Step 5: Solve for x
    x = 4,001,121,946.57/78,434.12
  6. Step 6: Final answer
    x = 51,012.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.