Home / 74,782.20-112,022.10-46,615.80

Finding the Fourth Proportional to 74,782.20, 112,022.10 and 46,615.80

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Solution

The fourth proportional to 74,782.20, 112,022.10 and 46,615.80 is: 69,829.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,782.20 : 112,022.10 = 46,615.80 : x
  2. Step 2: Convert to fraction form
    74,782.20/112,022.10 = 46,615.80/x
  3. Step 3: Cross multiply
    74,782.20x = 112,022.10 × 46,615.80
  4. Step 4: Simplify right side
    74,782.20x = 5,221,999,809.18
  5. Step 5: Solve for x
    x = 5,221,999,809.18/74,782.20
  6. Step 6: Final answer
    x = 69,829.45

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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.