Home / 72,742.37-108,961.27-58,622.45

Finding the Fourth Proportional to 72,742.37, 108,961.27 and 58,622.45

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Solution

The fourth proportional to 72,742.37, 108,961.27 and 58,622.45 is: 87,810.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,742.37 : 108,961.27 = 58,622.45 : x
  2. Step 2: Convert to fraction form
    72,742.37/108,961.27 = 58,622.45/x
  3. Step 3: Cross multiply
    72,742.37x = 108,961.27 × 58,622.45
  4. Step 4: Simplify right side
    72,742.37x = 6,387,576,602.51
  5. Step 5: Solve for x
    x = 6,387,576,602.51/72,742.37
  6. Step 6: Final answer
    x = 87,810.95

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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.