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Finding the Fourth Proportional to 78,184.16, 107,899.64 and 44,192.90

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Solution

The fourth proportional to 78,184.16, 107,899.64 and 44,192.90 is: 60,989.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,184.16 : 107,899.64 = 44,192.90 : x
  2. Step 2: Convert to fraction form
    78,184.16/107,899.64 = 44,192.90/x
  3. Step 3: Cross multiply
    78,184.16x = 107,899.64 × 44,192.90
  4. Step 4: Simplify right side
    78,184.16x = 4,768,398,000.56
  5. Step 5: Solve for x
    x = 4,768,398,000.56/78,184.16
  6. Step 6: Final answer
    x = 60,989.31

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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.