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Finding the Fourth Proportional to 127,622.72, 191,443.80 and 38,883.80

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Solution

The fourth proportional to 127,622.72, 191,443.80 and 38,883.80 is: 58,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,622.72 : 191,443.80 = 38,883.80 : x
  2. Step 2: Convert to fraction form
    127,622.72/191,443.80 = 38,883.80/x
  3. Step 3: Cross multiply
    127,622.72x = 191,443.80 × 38,883.80
  4. Step 4: Simplify right side
    127,622.72x = 7,444,062,430.44
  5. Step 5: Solve for x
    x = 7,444,062,430.44/127,622.72
  6. Step 6: Final answer
    x = 58,328.66

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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.