Home / 74,085.62-102,237.12-42,255.04

Finding the Fourth Proportional to 74,085.62, 102,237.12 and 42,255.04

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Solution

The fourth proportional to 74,085.62, 102,237.12 and 42,255.04 is: 58,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,085.62 : 102,237.12 = 42,255.04 : x
  2. Step 2: Convert to fraction form
    74,085.62/102,237.12 = 42,255.04/x
  3. Step 3: Cross multiply
    74,085.62x = 102,237.12 × 42,255.04
  4. Step 4: Simplify right side
    74,085.62x = 4,320,033,595.08
  5. Step 5: Solve for x
    x = 4,320,033,595.08/74,085.62
  6. Step 6: Final answer
    x = 58,311.36

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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.