Home / 57,148.77-85,728.81-19,703.93

Finding the Fourth Proportional to 57,148.77, 85,728.81 and 19,703.93

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Solution

The fourth proportional to 57,148.77, 85,728.81 and 19,703.93 is: 29,557.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,148.77 : 85,728.81 = 19,703.93 : x
  2. Step 2: Convert to fraction form
    57,148.77/85,728.81 = 19,703.93/x
  3. Step 3: Cross multiply
    57,148.77x = 85,728.81 × 19,703.93
  4. Step 4: Simplify right side
    57,148.77x = 1,689,194,471.22
  5. Step 5: Solve for x
    x = 1,689,194,471.22/57,148.77
  6. Step 6: Final answer
    x = 29,557.84

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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.