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Finding the Fourth Proportional to 85,270.72, 127,994.79 and 62,806.77

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Solution

The fourth proportional to 85,270.72, 127,994.79 and 62,806.77 is: 94,275.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,270.72 : 127,994.79 = 62,806.77 : x
  2. Step 2: Convert to fraction form
    85,270.72/127,994.79 = 62,806.77/x
  3. Step 3: Cross multiply
    85,270.72x = 127,994.79 × 62,806.77
  4. Step 4: Simplify right side
    85,270.72x = 8,038,939,336.73
  5. Step 5: Solve for x
    x = 8,038,939,336.73/85,270.72
  6. Step 6: Final answer
    x = 94,275.49

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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.