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Finding the Fourth Proportional to 78,903.64, 108,897.33 and 44,905.51

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Solution

The fourth proportional to 78,903.64, 108,897.33 and 44,905.51 is: 61,975.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,903.64 : 108,897.33 = 44,905.51 : x
  2. Step 2: Convert to fraction form
    78,903.64/108,897.33 = 44,905.51/x
  3. Step 3: Cross multiply
    78,903.64x = 108,897.33 × 44,905.51
  4. Step 4: Simplify right side
    78,903.64x = 4,890,090,141.29
  5. Step 5: Solve for x
    x = 4,890,090,141.29/78,903.64
  6. Step 6: Final answer
    x = 61,975.47

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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.