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Finding the Fourth Proportional to 92,968.32, 139,259.68 and 45,440.32

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Solution

The fourth proportional to 92,968.32, 139,259.68 and 45,440.32 is: 68,066.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,968.32 : 139,259.68 = 45,440.32 : x
  2. Step 2: Convert to fraction form
    92,968.32/139,259.68 = 45,440.32/x
  3. Step 3: Cross multiply
    92,968.32x = 139,259.68 × 45,440.32
  4. Step 4: Simplify right side
    92,968.32x = 6,328,004,422.30
  5. Step 5: Solve for x
    x = 6,328,004,422.30/92,968.32
  6. Step 6: Final answer
    x = 68,066.24

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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.