Home / 52,405.89-78,456.40-46,996.20

Finding the Fourth Proportional to 52,405.89, 78,456.40 and 46,996.20

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Solution

The fourth proportional to 52,405.89, 78,456.40 and 46,996.20 is: 70,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,405.89 : 78,456.40 = 46,996.20 : x
  2. Step 2: Convert to fraction form
    52,405.89/78,456.40 = 46,996.20/x
  3. Step 3: Cross multiply
    52,405.89x = 78,456.40 × 46,996.20
  4. Step 4: Simplify right side
    52,405.89x = 3,687,152,548.19
  5. Step 5: Solve for x
    x = 3,687,152,548.19/52,405.89
  6. Step 6: Final answer
    x = 70,357.60

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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.