Home / 74,029.14-102,157.50-42,191.90

Finding the Fourth Proportional to 74,029.14, 102,157.50 and 42,191.90

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Solution

The fourth proportional to 74,029.14, 102,157.50 and 42,191.90 is: 58,223.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,029.14 : 102,157.50 = 42,191.90 : x
  2. Step 2: Convert to fraction form
    74,029.14/102,157.50 = 42,191.90/x
  3. Step 3: Cross multiply
    74,029.14x = 102,157.50 × 42,191.90
  4. Step 4: Simplify right side
    74,029.14x = 4,310,218,513.46
  5. Step 5: Solve for x
    x = 4,310,218,513.46/74,029.14
  6. Step 6: Final answer
    x = 58,223.27

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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.