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Finding the Fourth Proportional to 65,280.32, 97,904.64 and 30,186.44

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Solution

The fourth proportional to 65,280.32, 97,904.64 and 30,186.44 is: 45,272.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,280.32 : 97,904.64 = 30,186.44 : x
  2. Step 2: Convert to fraction form
    65,280.32/97,904.64 = 30,186.44/x
  3. Step 3: Cross multiply
    65,280.32x = 97,904.64 × 30,186.44
  4. Step 4: Simplify right side
    65,280.32x = 2,955,392,541.08
  5. Step 5: Solve for x
    x = 2,955,392,541.08/65,280.32
  6. Step 6: Final answer
    x = 45,272.34

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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.