Home / 57,780.60-86,525.10-46,116.60

Finding the Fourth Proportional to 57,780.60, 86,525.10 and 46,116.60

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Solution

The fourth proportional to 57,780.60, 86,525.10 and 46,116.60 is: 69,058.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,780.60 : 86,525.10 = 46,116.60 : x
  2. Step 2: Convert to fraction form
    57,780.60/86,525.10 = 46,116.60/x
  3. Step 3: Cross multiply
    57,780.60x = 86,525.10 × 46,116.60
  4. Step 4: Simplify right side
    57,780.60x = 3,990,243,426.66
  5. Step 5: Solve for x
    x = 3,990,243,426.66/57,780.60
  6. Step 6: Final answer
    x = 69,058.53

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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.