Home / 95,915.40-143,678.70-54,313.80

Finding the Fourth Proportional to 95,915.40, 143,678.70 and 54,313.80

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Solution

The fourth proportional to 95,915.40, 143,678.70 and 54,313.80 is: 81,360.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,915.40 : 143,678.70 = 54,313.80 : x
  2. Step 2: Convert to fraction form
    95,915.40/143,678.70 = 54,313.80/x
  3. Step 3: Cross multiply
    95,915.40x = 143,678.70 × 54,313.80
  4. Step 4: Simplify right side
    95,915.40x = 7,803,736,176.06
  5. Step 5: Solve for x
    x = 7,803,736,176.06/95,915.40
  6. Step 6: Final answer
    x = 81,360.62

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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.