Home / 66,368.70-99,313.43-57,120.26

Finding the Fourth Proportional to 66,368.70, 99,313.43 and 57,120.26

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Solution

The fourth proportional to 66,368.70, 99,313.43 and 57,120.26 is: 85,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,368.70 : 99,313.43 = 57,120.26 : x
  2. Step 2: Convert to fraction form
    66,368.70/99,313.43 = 57,120.26/x
  3. Step 3: Cross multiply
    66,368.70x = 99,313.43 × 57,120.26
  4. Step 4: Simplify right side
    66,368.70x = 5,672,808,160.92
  5. Step 5: Solve for x
    x = 5,672,808,160.92/66,368.70
  6. Step 6: Final answer
    x = 85,474.15

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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.