Home / 74,712.56-103,103.37-42,447.23

Finding the Fourth Proportional to 74,712.56, 103,103.37 and 42,447.23

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Solution

The fourth proportional to 74,712.56, 103,103.37 and 42,447.23 is: 58,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,712.56 : 103,103.37 = 42,447.23 : x
  2. Step 2: Convert to fraction form
    74,712.56/103,103.37 = 42,447.23/x
  3. Step 3: Cross multiply
    74,712.56x = 103,103.37 × 42,447.23
  4. Step 4: Simplify right side
    74,712.56x = 4,376,453,022.10
  5. Step 5: Solve for x
    x = 4,376,453,022.10/74,712.56
  6. Step 6: Final answer
    x = 58,577.21

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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.