Home / 76,545.54-105,573.94-67,940.60

Finding the Fourth Proportional to 76,545.54, 105,573.94 and 67,940.60

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Solution

The fourth proportional to 76,545.54, 105,573.94 and 67,940.60 is: 93,705.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,545.54 : 105,573.94 = 67,940.60 : x
  2. Step 2: Convert to fraction form
    76,545.54/105,573.94 = 67,940.60/x
  3. Step 3: Cross multiply
    76,545.54x = 105,573.94 × 67,940.60
  4. Step 4: Simplify right side
    76,545.54x = 7,172,756,130.24
  5. Step 5: Solve for x
    x = 7,172,756,130.24/76,545.54
  6. Step 6: Final answer
    x = 93,705.74

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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.