Home / 76,623.14-105,715.32-46,398.80

Finding the Fourth Proportional to 76,623.14, 105,715.32 and 46,398.80

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Solution

The fourth proportional to 76,623.14, 105,715.32 and 46,398.80 is: 64,015.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,623.14 : 105,715.32 = 46,398.80 : x
  2. Step 2: Convert to fraction form
    76,623.14/105,715.32 = 46,398.80/x
  3. Step 3: Cross multiply
    76,623.14x = 105,715.32 × 46,398.80
  4. Step 4: Simplify right side
    76,623.14x = 4,905,063,989.62
  5. Step 5: Solve for x
    x = 4,905,063,989.62/76,623.14
  6. Step 6: Final answer
    x = 64,015.44

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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.