Home / 51,031.03-70,418.75-28,368.25

Finding the Fourth Proportional to 51,031.03, 70,418.75 and 28,368.25

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Solution

The fourth proportional to 51,031.03, 70,418.75 and 28,368.25 is: 39,145.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,031.03 : 70,418.75 = 28,368.25 : x
  2. Step 2: Convert to fraction form
    51,031.03/70,418.75 = 28,368.25/x
  3. Step 3: Cross multiply
    51,031.03x = 70,418.75 × 28,368.25
  4. Step 4: Simplify right side
    51,031.03x = 1,997,656,704.69
  5. Step 5: Solve for x
    x = 1,997,656,704.69/51,031.03
  6. Step 6: Final answer
    x = 39,145.92

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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.