Home / 78,567.66-108,435.05-46,291.98

Finding the Fourth Proportional to 78,567.66, 108,435.05 and 46,291.98

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Solution

The fourth proportional to 78,567.66, 108,435.05 and 46,291.98 is: 63,889.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,567.66 : 108,435.05 = 46,291.98 : x
  2. Step 2: Convert to fraction form
    78,567.66/108,435.05 = 46,291.98/x
  3. Step 3: Cross multiply
    78,567.66x = 108,435.05 × 46,291.98
  4. Step 4: Simplify right side
    78,567.66x = 5,019,673,165.90
  5. Step 5: Solve for x
    x = 5,019,673,165.90/78,567.66
  6. Step 6: Final answer
    x = 63,889.81

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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.