Home / 85,927.74-128,889.66-50,613.08

Finding the Fourth Proportional to 85,927.74, 128,889.66 and 50,613.08

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Solution

The fourth proportional to 85,927.74, 128,889.66 and 50,613.08 is: 75,918.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,927.74 : 128,889.66 = 50,613.08 : x
  2. Step 2: Convert to fraction form
    85,927.74/128,889.66 = 50,613.08/x
  3. Step 3: Cross multiply
    85,927.74x = 128,889.66 × 50,613.08
  4. Step 4: Simplify right side
    85,927.74x = 6,523,503,289.47
  5. Step 5: Solve for x
    x = 6,523,503,289.47/85,927.74
  6. Step 6: Final answer
    x = 75,918.48

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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.