Home / 78,113.04-107,806.73-47,893.02

Finding the Fourth Proportional to 78,113.04, 107,806.73 and 47,893.02

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Solution

The fourth proportional to 78,113.04, 107,806.73 and 47,893.02 is: 66,098.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,113.04 : 107,806.73 = 47,893.02 : x
  2. Step 2: Convert to fraction form
    78,113.04/107,806.73 = 47,893.02/x
  3. Step 3: Cross multiply
    78,113.04x = 107,806.73 × 47,893.02
  4. Step 4: Simplify right side
    78,113.04x = 5,163,189,636.56
  5. Step 5: Solve for x
    x = 5,163,189,636.56/78,113.04
  6. Step 6: Final answer
    x = 66,098.95

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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.