Home / 78,557.02-117,809.10-25,235.92

Finding the Fourth Proportional to 78,557.02, 117,809.10 and 25,235.92

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Solution

The fourth proportional to 78,557.02, 117,809.10 and 25,235.92 is: 37,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,557.02 : 117,809.10 = 25,235.92 : x
  2. Step 2: Convert to fraction form
    78,557.02/117,809.10 = 25,235.92/x
  3. Step 3: Cross multiply
    78,557.02x = 117,809.10 × 25,235.92
  4. Step 4: Simplify right side
    78,557.02x = 2,973,021,022.87
  5. Step 5: Solve for x
    x = 2,973,021,022.87/78,557.02
  6. Step 6: Final answer
    x = 37,845.39

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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.