Home / 90,984.70-136,412.43-34,777.45

Finding the Fourth Proportional to 90,984.70, 136,412.43 and 34,777.45

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Solution

The fourth proportional to 90,984.70, 136,412.43 and 34,777.45 is: 52,141.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,984.70 : 136,412.43 = 34,777.45 : x
  2. Step 2: Convert to fraction form
    90,984.70/136,412.43 = 34,777.45/x
  3. Step 3: Cross multiply
    90,984.70x = 136,412.43 × 34,777.45
  4. Step 4: Simplify right side
    90,984.70x = 4,744,076,463.70
  5. Step 5: Solve for x
    x = 4,744,076,463.70/90,984.70
  6. Step 6: Final answer
    x = 52,141.48

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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.