Home / 43,123.19-64,695.11-13,541.01

Finding the Fourth Proportional to 43,123.19, 64,695.11 and 13,541.01

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Solution

The fourth proportional to 43,123.19, 64,695.11 and 13,541.01 is: 20,314.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,123.19 : 64,695.11 = 13,541.01 : x
  2. Step 2: Convert to fraction form
    43,123.19/64,695.11 = 13,541.01/x
  3. Step 3: Cross multiply
    43,123.19x = 64,695.11 × 13,541.01
  4. Step 4: Simplify right side
    43,123.19x = 876,036,821.15
  5. Step 5: Solve for x
    x = 876,036,821.15/43,123.19
  6. Step 6: Final answer
    x = 20,314.75

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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.