Home / 78,913.14-108,900.08-43,103.24

Finding the Fourth Proportional to 78,913.14, 108,900.08 and 43,103.24

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Solution

The fourth proportional to 78,913.14, 108,900.08 and 43,103.24 is: 59,482.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,913.14 : 108,900.08 = 43,103.24 : x
  2. Step 2: Convert to fraction form
    78,913.14/108,900.08 = 43,103.24/x
  3. Step 3: Cross multiply
    78,913.14x = 108,900.08 × 43,103.24
  4. Step 4: Simplify right side
    78,913.14x = 4,693,946,094.26
  5. Step 5: Solve for x
    x = 4,693,946,094.26/78,913.14
  6. Step 6: Final answer
    x = 59,482.44

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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.