Home / 74,027.60-102,165-42,190.16

Finding the Fourth Proportional to 74,027.60, 102,165 and 42,190.16

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Solution

The fourth proportional to 74,027.60, 102,165 and 42,190.16 is: 58,226.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,027.60 : 102,165 = 42,190.16 : x
  2. Step 2: Convert to fraction form
    74,027.60/102,165 = 42,190.16/x
  3. Step 3: Cross multiply
    74,027.60x = 102,165 × 42,190.16
  4. Step 4: Simplify right side
    74,027.60x = 4,310,357,696.40
  5. Step 5: Solve for x
    x = 4,310,357,696.40/74,027.60
  6. Step 6: Final answer
    x = 58,226.36

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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.