Home / 84,890.87-117,148.71-46,128.35

Finding the Fourth Proportional to 84,890.87, 117,148.71 and 46,128.35

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Solution

The fourth proportional to 84,890.87, 117,148.71 and 46,128.35 is: 63,656.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,890.87 : 117,148.71 = 46,128.35 : x
  2. Step 2: Convert to fraction form
    84,890.87/117,148.71 = 46,128.35/x
  3. Step 3: Cross multiply
    84,890.87x = 117,148.71 × 46,128.35
  4. Step 4: Simplify right side
    84,890.87x = 5,403,877,162.78
  5. Step 5: Solve for x
    x = 5,403,877,162.78/84,890.87
  6. Step 6: Final answer
    x = 63,656.75

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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.