Home / 85,841.22-128,738.45-35,913.23

Finding the Fourth Proportional to 85,841.22, 128,738.45 and 35,913.23

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Solution

The fourth proportional to 85,841.22, 128,738.45 and 35,913.23 is: 53,860.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,841.22 : 128,738.45 = 35,913.23 : x
  2. Step 2: Convert to fraction form
    85,841.22/128,738.45 = 35,913.23/x
  3. Step 3: Cross multiply
    85,841.22x = 128,738.45 × 35,913.23
  4. Step 4: Simplify right side
    85,841.22x = 4,623,412,741.44
  5. Step 5: Solve for x
    x = 4,623,412,741.44/85,841.22
  6. Step 6: Final answer
    x = 53,860.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.