Home / 78,516.09-108,347.09-46,687.41

Finding the Fourth Proportional to 78,516.09, 108,347.09 and 46,687.41

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Solution

The fourth proportional to 78,516.09, 108,347.09 and 46,687.41 is: 64,425.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,516.09 : 108,347.09 = 46,687.41 : x
  2. Step 2: Convert to fraction form
    78,516.09/108,347.09 = 46,687.41/x
  3. Step 3: Cross multiply
    78,516.09x = 108,347.09 × 46,687.41
  4. Step 4: Simplify right side
    78,516.09x = 5,058,444,779.70
  5. Step 5: Solve for x
    x = 5,058,444,779.70/78,516.09
  6. Step 6: Final answer
    x = 64,425.58

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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.