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Finding the Fourth Proportional to 86,900.75, 119,923.04 and 47,156.75

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Solution

The fourth proportional to 86,900.75, 119,923.04 and 47,156.75 is: 65,076.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,900.75 : 119,923.04 = 47,156.75 : x
  2. Step 2: Convert to fraction form
    86,900.75/119,923.04 = 47,156.75/x
  3. Step 3: Cross multiply
    86,900.75x = 119,923.04 × 47,156.75
  4. Step 4: Simplify right side
    86,900.75x = 5,655,180,580.74
  5. Step 5: Solve for x
    x = 5,655,180,580.74/86,900.75
  6. Step 6: Final answer
    x = 65,076.32

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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.