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Finding the Fourth Proportional to 78,219.01, 117,234.24 and 36,041.32

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Solution

The fourth proportional to 78,219.01, 117,234.24 and 36,041.32 is: 54,018.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,219.01 : 117,234.24 = 36,041.32 : x
  2. Step 2: Convert to fraction form
    78,219.01/117,234.24 = 36,041.32/x
  3. Step 3: Cross multiply
    78,219.01x = 117,234.24 × 36,041.32
  4. Step 4: Simplify right side
    78,219.01x = 4,225,276,758.80
  5. Step 5: Solve for x
    x = 4,225,276,758.80/78,219.01
  6. Step 6: Final answer
    x = 54,018.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.