Home / 78,182.60-117,431.00-46,654.26

Finding the Fourth Proportional to 78,182.60, 117,431.00 and 46,654.26

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Solution

The fourth proportional to 78,182.60, 117,431.00 and 46,654.26 is: 70,075.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,182.60 : 117,431.00 = 46,654.26 : x
  2. Step 2: Convert to fraction form
    78,182.60/117,431.00 = 46,654.26/x
  3. Step 3: Cross multiply
    78,182.60x = 117,431.00 × 46,654.26
  4. Step 4: Simplify right side
    78,182.60x = 5,478,656,172.79
  5. Step 5: Solve for x
    x = 5,478,656,172.79/78,182.60
  6. Step 6: Final answer
    x = 70,075.14

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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.