Home / 55,379.49-76,421.03-31,503.93

Finding the Fourth Proportional to 55,379.49, 76,421.03 and 31,503.93

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Solution

The fourth proportional to 55,379.49, 76,421.03 and 31,503.93 is: 43,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,379.49 : 76,421.03 = 31,503.93 : x
  2. Step 2: Convert to fraction form
    55,379.49/76,421.03 = 31,503.93/x
  3. Step 3: Cross multiply
    55,379.49x = 76,421.03 × 31,503.93
  4. Step 4: Simplify right side
    55,379.49x = 2,407,562,779.65
  5. Step 5: Solve for x
    x = 2,407,562,779.65/55,379.49
  6. Step 6: Final answer
    x = 43,473.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.