Home / 75,319.40-103,944.53-43,055.69

Finding the Fourth Proportional to 75,319.40, 103,944.53 and 43,055.69

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Solution

The fourth proportional to 75,319.40, 103,944.53 and 43,055.69 is: 59,418.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,319.40 : 103,944.53 = 43,055.69 : x
  2. Step 2: Convert to fraction form
    75,319.40/103,944.53 = 43,055.69/x
  3. Step 3: Cross multiply
    75,319.40x = 103,944.53 × 43,055.69
  4. Step 4: Simplify right side
    75,319.40x = 4,475,403,048.79
  5. Step 5: Solve for x
    x = 4,475,403,048.79/75,319.40
  6. Step 6: Final answer
    x = 59,418.99

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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.