Home / 51,329.04-77,012.64-31,379.46

Finding the Fourth Proportional to 51,329.04, 77,012.64 and 31,379.46

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Solution

The fourth proportional to 51,329.04, 77,012.64 and 31,379.46 is: 47,080.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,329.04 : 77,012.64 = 31,379.46 : x
  2. Step 2: Convert to fraction form
    51,329.04/77,012.64 = 31,379.46/x
  3. Step 3: Cross multiply
    51,329.04x = 77,012.64 × 31,379.46
  4. Step 4: Simplify right side
    51,329.04x = 2,416,615,056.37
  5. Step 5: Solve for x
    x = 2,416,615,056.37/51,329.04
  6. Step 6: Final answer
    x = 47,080.85

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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.