Home / 66,971.34-100,457.01-52,191.32

Finding the Fourth Proportional to 66,971.34, 100,457.01 and 52,191.32

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Solution

The fourth proportional to 66,971.34, 100,457.01 and 52,191.32 is: 78,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,971.34 : 100,457.01 = 52,191.32 : x
  2. Step 2: Convert to fraction form
    66,971.34/100,457.01 = 52,191.32/x
  3. Step 3: Cross multiply
    66,971.34x = 100,457.01 × 52,191.32
  4. Step 4: Simplify right side
    66,971.34x = 5,242,983,191.91
  5. Step 5: Solve for x
    x = 5,242,983,191.91/66,971.34
  6. Step 6: Final answer
    x = 78,286.97

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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.