Home / 74,146.13-102,321.65-42,314.34

Finding the Fourth Proportional to 74,146.13, 102,321.65 and 42,314.34

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Solution

The fourth proportional to 74,146.13, 102,321.65 and 42,314.34 is: 58,393.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,146.13 : 102,321.65 = 42,314.34 : x
  2. Step 2: Convert to fraction form
    74,146.13/102,321.65 = 42,314.34/x
  3. Step 3: Cross multiply
    74,146.13x = 102,321.65 × 42,314.34
  4. Step 4: Simplify right side
    74,146.13x = 4,329,673,193.25
  5. Step 5: Solve for x
    x = 4,329,673,193.25/74,146.13
  6. Step 6: Final answer
    x = 58,393.79

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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.