Home / 78,569.45-108,406.91-46,305.35

Finding the Fourth Proportional to 78,569.45, 108,406.91 and 46,305.35

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Solution

The fourth proportional to 78,569.45, 108,406.91 and 46,305.35 is: 63,890.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,569.45 : 108,406.91 = 46,305.35 : x
  2. Step 2: Convert to fraction form
    78,569.45/108,406.91 = 46,305.35/x
  3. Step 3: Cross multiply
    78,569.45x = 108,406.91 × 46,305.35
  4. Step 4: Simplify right side
    78,569.45x = 5,019,819,136.41
  5. Step 5: Solve for x
    x = 5,019,819,136.41/78,569.45
  6. Step 6: Final answer
    x = 63,890.22

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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.