Home / 98,987.10-148,579.50-54,634.74

Finding the Fourth Proportional to 98,987.10, 148,579.50 and 54,634.74

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Solution

The fourth proportional to 98,987.10, 148,579.50 and 54,634.74 is: 82,006.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,987.10 : 148,579.50 = 54,634.74 : x
  2. Step 2: Convert to fraction form
    98,987.10/148,579.50 = 54,634.74/x
  3. Step 3: Cross multiply
    98,987.10x = 148,579.50 × 54,634.74
  4. Step 4: Simplify right side
    98,987.10x = 8,117,602,351.83
  5. Step 5: Solve for x
    x = 8,117,602,351.83/98,987.10
  6. Step 6: Final answer
    x = 82,006.67

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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.