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Finding the Fourth Proportional to 79,248.63, 109,361.38 and 43,437.87

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Solution

The fourth proportional to 79,248.63, 109,361.38 and 43,437.87 is: 59,943.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,248.63 : 109,361.38 = 43,437.87 : x
  2. Step 2: Convert to fraction form
    79,248.63/109,361.38 = 43,437.87/x
  3. Step 3: Cross multiply
    79,248.63x = 109,361.38 × 43,437.87
  4. Step 4: Simplify right side
    79,248.63x = 4,750,425,407.46
  5. Step 5: Solve for x
    x = 4,750,425,407.46/79,248.63
  6. Step 6: Final answer
    x = 59,943.31

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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.