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Finding the Fourth Proportional to 99,287.63, 137,016.93 and 54,575.63

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Solution

The fourth proportional to 99,287.63, 137,016.93 and 54,575.63 is: 75,314.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,287.63 : 137,016.93 = 54,575.63 : x
  2. Step 2: Convert to fraction form
    99,287.63/137,016.93 = 54,575.63/x
  3. Step 3: Cross multiply
    99,287.63x = 137,016.93 × 54,575.63
  4. Step 4: Simplify right side
    99,287.63x = 7,477,785,275.42
  5. Step 5: Solve for x
    x = 7,477,785,275.42/99,287.63
  6. Step 6: Final answer
    x = 75,314.37

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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.