Home / 57,803.60-86,712.35-20,355.93

Finding the Fourth Proportional to 57,803.60, 86,712.35 and 20,355.93

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Solution

The fourth proportional to 57,803.60, 86,712.35 and 20,355.93 is: 30,536.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,803.60 : 86,712.35 = 20,355.93 : x
  2. Step 2: Convert to fraction form
    57,803.60/86,712.35 = 20,355.93/x
  3. Step 3: Cross multiply
    57,803.60x = 86,712.35 × 20,355.93
  4. Step 4: Simplify right side
    57,803.60x = 1,765,110,726.09
  5. Step 5: Solve for x
    x = 1,765,110,726.09/57,803.60
  6. Step 6: Final answer
    x = 30,536.35

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1.5x scale

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.