Home / 78,857.10-118,304.51-26,267.04

Finding the Fourth Proportional to 78,857.10, 118,304.51 and 26,267.04

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Solution

The fourth proportional to 78,857.10, 118,304.51 and 26,267.04 is: 39,406.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,857.10 : 118,304.51 = 26,267.04 : x
  2. Step 2: Convert to fraction form
    78,857.10/118,304.51 = 26,267.04/x
  3. Step 3: Cross multiply
    78,857.10x = 118,304.51 × 26,267.04
  4. Step 4: Simplify right side
    78,857.10x = 3,107,509,165.02
  5. Step 5: Solve for x
    x = 3,107,509,165.02/78,857.10
  6. Step 6: Final answer
    x = 39,406.84

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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.