Home / 57,887.19-86,841.11-20,468.98

Finding the Fourth Proportional to 57,887.19, 86,841.11 and 20,468.98

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Solution

The fourth proportional to 57,887.19, 86,841.11 and 20,468.98 is: 30,707.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,887.19 : 86,841.11 = 20,468.98 : x
  2. Step 2: Convert to fraction form
    57,887.19/86,841.11 = 20,468.98/x
  3. Step 3: Cross multiply
    57,887.19x = 86,841.11 × 20,468.98
  4. Step 4: Simplify right side
    57,887.19x = 1,777,548,943.77
  5. Step 5: Solve for x
    x = 1,777,548,943.77/57,887.19
  6. Step 6: Final answer
    x = 30,707.12

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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.