Home / 58,583.13-87,856.50-21,138.33

Finding the Fourth Proportional to 58,583.13, 87,856.50 and 21,138.33

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Solution

The fourth proportional to 58,583.13, 87,856.50 and 21,138.33 is: 31,700.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,583.13 : 87,856.50 = 21,138.33 : x
  2. Step 2: Convert to fraction form
    58,583.13/87,856.50 = 21,138.33/x
  3. Step 3: Cross multiply
    58,583.13x = 87,856.50 × 21,138.33
  4. Step 4: Simplify right side
    58,583.13x = 1,857,139,689.65
  5. Step 5: Solve for x
    x = 1,857,139,689.65/58,583.13
  6. Step 6: Final answer
    x = 31,700.93

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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.