Home / 78,050.40-117,046.80-25,461.60

Finding the Fourth Proportional to 78,050.40, 117,046.80 and 25,461.60

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Solution

The fourth proportional to 78,050.40, 117,046.80 and 25,461.60 is: 38,183.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,050.40 : 117,046.80 = 25,461.60 : x
  2. Step 2: Convert to fraction form
    78,050.40/117,046.80 = 25,461.60/x
  3. Step 3: Cross multiply
    78,050.40x = 117,046.80 × 25,461.60
  4. Step 4: Simplify right side
    78,050.40x = 2,980,198,802.88
  5. Step 5: Solve for x
    x = 2,980,198,802.88/78,050.40
  6. Step 6: Final answer
    x = 38,183.00

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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.