Home / 74,810.20-112,064.10-46,643.80

Finding the Fourth Proportional to 74,810.20, 112,064.10 and 46,643.80

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Solution

The fourth proportional to 74,810.20, 112,064.10 and 46,643.80 is: 69,871.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,810.20 : 112,064.10 = 46,643.80 : x
  2. Step 2: Convert to fraction form
    74,810.20/112,064.10 = 46,643.80/x
  3. Step 3: Cross multiply
    74,810.20x = 112,064.10 × 46,643.80
  4. Step 4: Simplify right side
    74,810.20x = 5,227,095,467.58
  5. Step 5: Solve for x
    x = 5,227,095,467.58/74,810.20
  6. Step 6: Final answer
    x = 69,871.43

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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.