Home / 74,719.56-103,110.66-42,889.08

Finding the Fourth Proportional to 74,719.56, 103,110.66 and 42,889.08

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Solution

The fourth proportional to 74,719.56, 103,110.66 and 42,889.08 is: 59,185.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,719.56 : 103,110.66 = 42,889.08 : x
  2. Step 2: Convert to fraction form
    74,719.56/103,110.66 = 42,889.08/x
  3. Step 3: Cross multiply
    74,719.56x = 103,110.66 × 42,889.08
  4. Step 4: Simplify right side
    74,719.56x = 4,422,321,345.59
  5. Step 5: Solve for x
    x = 4,422,321,345.59/74,719.56
  6. Step 6: Final answer
    x = 59,185.59

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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.