Home / 69,021.60-95,031.36-62,715.12

Finding the Fourth Proportional to 69,021.60, 95,031.36 and 62,715.12

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Solution

The fourth proportional to 69,021.60, 95,031.36 and 62,715.12 is: 86,348.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,021.60 : 95,031.36 = 62,715.12 : x
  2. Step 2: Convert to fraction form
    69,021.60/95,031.36 = 62,715.12/x
  3. Step 3: Cross multiply
    69,021.60x = 95,031.36 × 62,715.12
  4. Step 4: Simplify right side
    69,021.60x = 5,959,903,146.16
  5. Step 5: Solve for x
    x = 5,959,903,146.16/69,021.60
  6. Step 6: Final answer
    x = 86,348.38

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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.