Home / 76,530.37-105,611.22-42,537.99

Finding the Fourth Proportional to 76,530.37, 105,611.22 and 42,537.99

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Solution

The fourth proportional to 76,530.37, 105,611.22 and 42,537.99 is: 58,702.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,530.37 : 105,611.22 = 42,537.99 : x
  2. Step 2: Convert to fraction form
    76,530.37/105,611.22 = 42,537.99/x
  3. Step 3: Cross multiply
    76,530.37x = 105,611.22 × 42,537.99
  4. Step 4: Simplify right side
    76,530.37x = 4,492,489,020.25
  5. Step 5: Solve for x
    x = 4,492,489,020.25/76,530.37
  6. Step 6: Final answer
    x = 58,702.04

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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.