Home / 82,485.48-123,643.70-32,545.38

Finding the Fourth Proportional to 82,485.48, 123,643.70 and 32,545.38

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Solution

The fourth proportional to 82,485.48, 123,643.70 and 32,545.38 is: 48,784.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,485.48 : 123,643.70 = 32,545.38 : x
  2. Step 2: Convert to fraction form
    82,485.48/123,643.70 = 32,545.38/x
  3. Step 3: Cross multiply
    82,485.48x = 123,643.70 × 32,545.38
  4. Step 4: Simplify right side
    82,485.48x = 4,024,031,201.11
  5. Step 5: Solve for x
    x = 4,024,031,201.11/82,485.48
  6. Step 6: Final answer
    x = 48,784.72

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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.