Home / 74,777.56-103,186.38-42,943.48

Finding the Fourth Proportional to 74,777.56, 103,186.38 and 42,943.48

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Solution

The fourth proportional to 74,777.56, 103,186.38 and 42,943.48 is: 59,258.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,777.56 : 103,186.38 = 42,943.48 : x
  2. Step 2: Convert to fraction form
    74,777.56/103,186.38 = 42,943.48/x
  3. Step 3: Cross multiply
    74,777.56x = 103,186.38 × 42,943.48
  4. Step 4: Simplify right side
    74,777.56x = 4,431,182,245.80
  5. Step 5: Solve for x
    x = 4,431,182,245.80/74,777.56
  6. Step 6: Final answer
    x = 59,258.18

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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.