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Finding the Fourth Proportional to 94,139.84, 129,913.34 and 51,119.40

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Solution

The fourth proportional to 94,139.84, 129,913.34 and 51,119.40 is: 70,544.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,139.84 : 129,913.34 = 51,119.40 : x
  2. Step 2: Convert to fraction form
    94,139.84/129,913.34 = 51,119.40/x
  3. Step 3: Cross multiply
    94,139.84x = 129,913.34 × 51,119.40
  4. Step 4: Simplify right side
    94,139.84x = 6,641,091,992.80
  5. Step 5: Solve for x
    x = 6,641,091,992.80/94,139.84
  6. Step 6: Final answer
    x = 70,544.97

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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.