Home / 74,085.61-102,237.11-42,255.04

Finding the Fourth Proportional to 74,085.61, 102,237.11 and 42,255.04

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Solution

The fourth proportional to 74,085.61, 102,237.11 and 42,255.04 is: 58,311.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,085.61 : 102,237.11 = 42,255.04 : x
  2. Step 2: Convert to fraction form
    74,085.61/102,237.11 = 42,255.04/x
  3. Step 3: Cross multiply
    74,085.61x = 102,237.11 × 42,255.04
  4. Step 4: Simplify right side
    74,085.61x = 4,320,033,172.53
  5. Step 5: Solve for x
    x = 4,320,033,172.53/74,085.61
  6. Step 6: Final answer
    x = 58,311.37

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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.