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Finding the Fourth Proportional to 94,378.80, 130,243.66 and 51,938.30

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Solution

The fourth proportional to 94,378.80, 130,243.66 and 51,938.30 is: 71,675.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,378.80 : 130,243.66 = 51,938.30 : x
  2. Step 2: Convert to fraction form
    94,378.80/130,243.66 = 51,938.30/x
  3. Step 3: Cross multiply
    94,378.80x = 130,243.66 × 51,938.30
  4. Step 4: Simplify right side
    94,378.80x = 6,764,634,286.18
  5. Step 5: Solve for x
    x = 6,764,634,286.18/94,378.80
  6. Step 6: Final answer
    x = 71,675.36

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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.