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Finding the Fourth Proportional to 90,858.97, 125,437.53 and 60,743.98

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Solution

The fourth proportional to 90,858.97, 125,437.53 and 60,743.98 is: 83,861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,858.97 : 125,437.53 = 60,743.98 : x
  2. Step 2: Convert to fraction form
    90,858.97/125,437.53 = 60,743.98/x
  3. Step 3: Cross multiply
    90,858.97x = 125,437.53 × 60,743.98
  4. Step 4: Simplify right side
    90,858.97x = 7,619,574,813.57
  5. Step 5: Solve for x
    x = 7,619,574,813.57/90,858.97
  6. Step 6: Final answer
    x = 83,861.56

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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.