Home / 86,697.12-119,640.60-48,457.56

Finding the Fourth Proportional to 86,697.12, 119,640.60 and 48,457.56

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Solution

The fourth proportional to 86,697.12, 119,640.60 and 48,457.56 is: 66,870.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,697.12 : 119,640.60 = 48,457.56 : x
  2. Step 2: Convert to fraction form
    86,697.12/119,640.60 = 48,457.56/x
  3. Step 3: Cross multiply
    86,697.12x = 119,640.60 × 48,457.56
  4. Step 4: Simplify right side
    86,697.12x = 5,797,491,552.94
  5. Step 5: Solve for x
    x = 5,797,491,552.94/86,697.12
  6. Step 6: Final answer
    x = 66,870.64

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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.