Home / 56,437.89-84,658.62-20,908.10

Finding the Fourth Proportional to 56,437.89, 84,658.62 and 20,908.10

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Solution

The fourth proportional to 56,437.89, 84,658.62 and 20,908.10 is: 31,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,437.89 : 84,658.62 = 20,908.10 : x
  2. Step 2: Convert to fraction form
    56,437.89/84,658.62 = 20,908.10/x
  3. Step 3: Cross multiply
    56,437.89x = 84,658.62 × 20,908.10
  4. Step 4: Simplify right side
    56,437.89x = 1,770,050,827.16
  5. Step 5: Solve for x
    x = 1,770,050,827.16/56,437.89
  6. Step 6: Final answer
    x = 31,362.81

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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.