Home / 98,219.93-135,545.42-55,778.63

Finding the Fourth Proportional to 98,219.93, 135,545.42 and 55,778.63

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Solution

The fourth proportional to 98,219.93, 135,545.42 and 55,778.63 is: 76,975.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,219.93 : 135,545.42 = 55,778.63 : x
  2. Step 2: Convert to fraction form
    98,219.93/135,545.42 = 55,778.63/x
  3. Step 3: Cross multiply
    98,219.93x = 135,545.42 × 55,778.63
  4. Step 4: Simplify right side
    98,219.93x = 7,560,537,830.37
  5. Step 5: Solve for x
    x = 7,560,537,830.37/98,219.93
  6. Step 6: Final answer
    x = 76,975.60

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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.