Home / 56,846.09-85,172.04-31,870.55

Finding the Fourth Proportional to 56,846.09, 85,172.04 and 31,870.55

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Solution

The fourth proportional to 56,846.09, 85,172.04 and 31,870.55 is: 47,751.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,846.09 : 85,172.04 = 31,870.55 : x
  2. Step 2: Convert to fraction form
    56,846.09/85,172.04 = 31,870.55/x
  3. Step 3: Cross multiply
    56,846.09x = 85,172.04 × 31,870.55
  4. Step 4: Simplify right side
    56,846.09x = 2,714,479,333.56
  5. Step 5: Solve for x
    x = 2,714,479,333.56/56,846.09
  6. Step 6: Final answer
    x = 47,751.39

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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.