Home / 78,030.34-117,057.66-25,427.62

Finding the Fourth Proportional to 78,030.34, 117,057.66 and 25,427.62

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Solution

The fourth proportional to 78,030.34, 117,057.66 and 25,427.62 is: 38,145.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,030.34 : 117,057.66 = 25,427.62 : x
  2. Step 2: Convert to fraction form
    78,030.34/117,057.66 = 25,427.62/x
  3. Step 3: Cross multiply
    78,030.34x = 117,057.66 × 25,427.62
  4. Step 4: Simplify right side
    78,030.34x = 2,976,497,696.57
  5. Step 5: Solve for x
    x = 2,976,497,696.57/78,030.34
  6. Step 6: Final answer
    x = 38,145.39

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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.