Home / 76,127.42-105,156.24-58,440.98

Finding the Fourth Proportional to 76,127.42, 105,156.24 and 58,440.98

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Solution

The fourth proportional to 76,127.42, 105,156.24 and 58,440.98 is: 80,725.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,127.42 : 105,156.24 = 58,440.98 : x
  2. Step 2: Convert to fraction form
    76,127.42/105,156.24 = 58,440.98/x
  3. Step 3: Cross multiply
    76,127.42x = 105,156.24 × 58,440.98
  4. Step 4: Simplify right side
    76,127.42x = 6,145,433,718.72
  5. Step 5: Solve for x
    x = 6,145,433,718.72/76,127.42
  6. Step 6: Final answer
    x = 80,725.63

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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.