Home / 77,945.40-116,939.70-51,701.40

Finding the Fourth Proportional to 77,945.40, 116,939.70 and 51,701.40

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Solution

The fourth proportional to 77,945.40, 116,939.70 and 51,701.40 is: 77,566.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,945.40 : 116,939.70 = 51,701.40 : x
  2. Step 2: Convert to fraction form
    77,945.40/116,939.70 = 51,701.40/x
  3. Step 3: Cross multiply
    77,945.40x = 116,939.70 × 51,701.40
  4. Step 4: Simplify right side
    77,945.40x = 6,045,946,205.58
  5. Step 5: Solve for x
    x = 6,045,946,205.58/77,945.40
  6. Step 6: Final answer
    x = 77,566.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.