Home / 75,085.03-103,640.40-43,275.10

Finding the Fourth Proportional to 75,085.03, 103,640.40 and 43,275.10

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Solution

The fourth proportional to 75,085.03, 103,640.40 and 43,275.10 is: 59,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,085.03 : 103,640.40 = 43,275.10 : x
  2. Step 2: Convert to fraction form
    75,085.03/103,640.40 = 43,275.10/x
  3. Step 3: Cross multiply
    75,085.03x = 103,640.40 × 43,275.10
  4. Step 4: Simplify right side
    75,085.03x = 4,485,048,674.04
  5. Step 5: Solve for x
    x = 4,485,048,674.04/75,085.03
  6. Step 6: Final answer
    x = 59,732.93

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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.