Home / 84,017.28-115,940.40-46,289.28

Finding the Fourth Proportional to 84,017.28, 115,940.40 and 46,289.28

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Solution

The fourth proportional to 84,017.28, 115,940.40 and 46,289.28 is: 63,877.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,017.28 : 115,940.40 = 46,289.28 : x
  2. Step 2: Convert to fraction form
    84,017.28/115,940.40 = 46,289.28/x
  3. Step 3: Cross multiply
    84,017.28x = 115,940.40 × 46,289.28
  4. Step 4: Simplify right side
    84,017.28x = 5,366,797,638.91
  5. Step 5: Solve for x
    x = 5,366,797,638.91/84,017.28
  6. Step 6: Final answer
    x = 63,877.31

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1.5x scale

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.