Home / 74,771.36-103,190.68-42,946.40

Finding the Fourth Proportional to 74,771.36, 103,190.68 and 42,946.40

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Solution

The fourth proportional to 74,771.36, 103,190.68 and 42,946.40 is: 59,269.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,771.36 : 103,190.68 = 42,946.40 : x
  2. Step 2: Convert to fraction form
    74,771.36/103,190.68 = 42,946.40/x
  3. Step 3: Cross multiply
    74,771.36x = 103,190.68 × 42,946.40
  4. Step 4: Simplify right side
    74,771.36x = 4,431,668,219.55
  5. Step 5: Solve for x
    x = 4,431,668,219.55/74,771.36
  6. Step 6: Final answer
    x = 59,269.59

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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.