Home / 78,905.04-108,889.56-43,094.40

Finding the Fourth Proportional to 78,905.04, 108,889.56 and 43,094.40

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Solution

The fourth proportional to 78,905.04, 108,889.56 and 43,094.40 is: 59,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,905.04 : 108,889.56 = 43,094.40 : x
  2. Step 2: Convert to fraction form
    78,905.04/108,889.56 = 43,094.40/x
  3. Step 3: Cross multiply
    78,905.04x = 108,889.56 × 43,094.40
  4. Step 4: Simplify right side
    78,905.04x = 4,692,530,254.46
  5. Step 5: Solve for x
    x = 4,692,530,254.46/78,905.04
  6. Step 6: Final answer
    x = 59,470.60

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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.