Home / 76,419.04-105,432.96-46,213.60

Finding the Fourth Proportional to 76,419.04, 105,432.96 and 46,213.60

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Solution

The fourth proportional to 76,419.04, 105,432.96 and 46,213.60 is: 63,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,419.04 : 105,432.96 = 46,213.60 : x
  2. Step 2: Convert to fraction form
    76,419.04/105,432.96 = 46,213.60/x
  3. Step 3: Cross multiply
    76,419.04x = 105,432.96 × 46,213.60
  4. Step 4: Simplify right side
    76,419.04x = 4,872,436,640.26
  5. Step 5: Solve for x
    x = 4,872,436,640.26/76,419.04
  6. Step 6: Final answer
    x = 63,759.46

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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.