Home / 74,771.56-103,178.10-42,937.48

Finding the Fourth Proportional to 74,771.56, 103,178.10 and 42,937.48

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Solution

The fourth proportional to 74,771.56, 103,178.10 and 42,937.48 is: 59,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,771.56 : 103,178.10 = 42,937.48 : x
  2. Step 2: Convert to fraction form
    74,771.56/103,178.10 = 42,937.48/x
  3. Step 3: Cross multiply
    74,771.56x = 103,178.10 × 42,937.48
  4. Step 4: Simplify right side
    74,771.56x = 4,430,207,605.19
  5. Step 5: Solve for x
    x = 4,430,207,605.19/74,771.56
  6. Step 6: Final answer
    x = 59,249.90

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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.