Home / 78,905.48-108,887.87-43,095.63

Finding the Fourth Proportional to 78,905.48, 108,887.87 and 43,095.63

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Solution

The fourth proportional to 78,905.48, 108,887.87 and 43,095.63 is: 59,471.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,905.48 : 108,887.87 = 43,095.63 : x
  2. Step 2: Convert to fraction form
    78,905.48/108,887.87 = 43,095.63/x
  3. Step 3: Cross multiply
    78,905.48x = 108,887.87 × 43,095.63
  4. Step 4: Simplify right side
    78,905.48x = 4,692,591,873.08
  5. Step 5: Solve for x
    x = 4,692,591,873.08/78,905.48
  6. Step 6: Final answer
    x = 59,471.06

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1.5x scale

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.