Home / 66,138.10-91,269.26-37,457.29

Finding the Fourth Proportional to 66,138.10, 91,269.26 and 37,457.29

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Solution

The fourth proportional to 66,138.10, 91,269.26 and 37,457.29 is: 51,690.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,138.10 : 91,269.26 = 37,457.29 : x
  2. Step 2: Convert to fraction form
    66,138.10/91,269.26 = 37,457.29/x
  3. Step 3: Cross multiply
    66,138.10x = 91,269.26 × 37,457.29
  4. Step 4: Simplify right side
    66,138.10x = 3,418,699,207.17
  5. Step 5: Solve for x
    x = 3,418,699,207.17/66,138.10
  6. Step 6: Final answer
    x = 51,690.32

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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.