Home / 86,974.20-130,457.01-50,970.72

Finding the Fourth Proportional to 86,974.20, 130,457.01 and 50,970.72

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Solution

The fourth proportional to 86,974.20, 130,457.01 and 50,970.72 is: 76,453.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,974.20 : 130,457.01 = 50,970.72 : x
  2. Step 2: Convert to fraction form
    86,974.20/130,457.01 = 50,970.72/x
  3. Step 3: Cross multiply
    86,974.20x = 130,457.01 × 50,970.72
  4. Step 4: Simplify right side
    86,974.20x = 6,649,487,728.75
  5. Step 5: Solve for x
    x = 6,649,487,728.75/86,974.20
  6. Step 6: Final answer
    x = 76,453.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.