Home / 76,325.28-105,259.98-47,647.59

Finding the Fourth Proportional to 76,325.28, 105,259.98 and 47,647.59

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Solution

The fourth proportional to 76,325.28, 105,259.98 and 47,647.59 is: 65,710.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,325.28 : 105,259.98 = 47,647.59 : x
  2. Step 2: Convert to fraction form
    76,325.28/105,259.98 = 47,647.59/x
  3. Step 3: Cross multiply
    76,325.28x = 105,259.98 × 47,647.59
  4. Step 4: Simplify right side
    76,325.28x = 5,015,383,886.38
  5. Step 5: Solve for x
    x = 5,015,383,886.38/76,325.28
  6. Step 6: Final answer
    x = 65,710.65

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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.