Home / 75,060.18-103,668.08-51,145.34

Finding the Fourth Proportional to 75,060.18, 103,668.08 and 51,145.34

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Solution

The fourth proportional to 75,060.18, 103,668.08 and 51,145.34 is: 70,638.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,060.18 : 103,668.08 = 51,145.34 : x
  2. Step 2: Convert to fraction form
    75,060.18/103,668.08 = 51,145.34/x
  3. Step 3: Cross multiply
    75,060.18x = 103,668.08 × 51,145.34
  4. Step 4: Simplify right side
    75,060.18x = 5,302,139,198.75
  5. Step 5: Solve for x
    x = 5,302,139,198.75/75,060.18
  6. Step 6: Final answer
    x = 70,638.51

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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.