Home / 98,629.83-147,945.83-28,509.75

Finding the Fourth Proportional to 98,629.83, 147,945.83 and 28,509.75

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Solution

The fourth proportional to 98,629.83, 147,945.83 and 28,509.75 is: 42,764.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,629.83 : 147,945.83 = 28,509.75 : x
  2. Step 2: Convert to fraction form
    98,629.83/147,945.83 = 28,509.75/x
  3. Step 3: Cross multiply
    98,629.83x = 147,945.83 × 28,509.75
  4. Step 4: Simplify right side
    98,629.83x = 4,217,898,484.29
  5. Step 5: Solve for x
    x = 4,217,898,484.29/98,629.83
  6. Step 6: Final answer
    x = 42,764.94

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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.