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Finding the Fourth Proportional to 94,342.70, 130,190.80 and 54,080.20

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Solution

The fourth proportional to 94,342.70, 130,190.80 and 54,080.20 is: 74,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,342.70 : 130,190.80 = 54,080.20 : x
  2. Step 2: Convert to fraction form
    94,342.70/130,190.80 = 54,080.20/x
  3. Step 3: Cross multiply
    94,342.70x = 130,190.80 × 54,080.20
  4. Step 4: Simplify right side
    94,342.70x = 7,040,744,502.16
  5. Step 5: Solve for x
    x = 7,040,744,502.16/94,342.70
  6. Step 6: Final answer
    x = 74,629.46

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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.