Home / 56,162.57-84,238.07-18,718.61

Finding the Fourth Proportional to 56,162.57, 84,238.07 and 18,718.61

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Solution

The fourth proportional to 56,162.57, 84,238.07 and 18,718.61 is: 28,075.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,162.57 : 84,238.07 = 18,718.61 : x
  2. Step 2: Convert to fraction form
    56,162.57/84,238.07 = 18,718.61/x
  3. Step 3: Cross multiply
    56,162.57x = 84,238.07 × 18,718.61
  4. Step 4: Simplify right side
    56,162.57x = 1,576,819,064.70
  5. Step 5: Solve for x
    x = 1,576,819,064.70/56,162.57
  6. Step 6: Final answer
    x = 28,075.98

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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.