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Finding the Fourth Proportional to 94,539.69, 130,489.95 and 55,811.57

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Solution

The fourth proportional to 94,539.69, 130,489.95 and 55,811.57 is: 77,034.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,539.69 : 130,489.95 = 55,811.57 : x
  2. Step 2: Convert to fraction form
    94,539.69/130,489.95 = 55,811.57/x
  3. Step 3: Cross multiply
    94,539.69x = 130,489.95 × 55,811.57
  4. Step 4: Simplify right side
    94,539.69x = 7,282,848,326.27
  5. Step 5: Solve for x
    x = 7,282,848,326.27/94,539.69
  6. Step 6: Final answer
    x = 77,034.82

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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.