Home / 75,137.76-103,666.64-43,302.33

Finding the Fourth Proportional to 75,137.76, 103,666.64 and 43,302.33

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Solution

The fourth proportional to 75,137.76, 103,666.64 and 43,302.33 is: 59,743.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,137.76 : 103,666.64 = 43,302.33 : x
  2. Step 2: Convert to fraction form
    75,137.76/103,666.64 = 43,302.33/x
  3. Step 3: Cross multiply
    75,137.76x = 103,666.64 × 43,302.33
  4. Step 4: Simplify right side
    75,137.76x = 4,489,006,838.76
  5. Step 5: Solve for x
    x = 4,489,006,838.76/75,137.76
  6. Step 6: Final answer
    x = 59,743.69

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1.5x scale

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.