Home / 72,068.13-108,122.02-34,659.50

Finding the Fourth Proportional to 72,068.13, 108,122.02 and 34,659.50

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Solution

The fourth proportional to 72,068.13, 108,122.02 and 34,659.50 is: 51,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,068.13 : 108,122.02 = 34,659.50 : x
  2. Step 2: Convert to fraction form
    72,068.13/108,122.02 = 34,659.50/x
  3. Step 3: Cross multiply
    72,068.13x = 108,122.02 × 34,659.50
  4. Step 4: Simplify right side
    72,068.13x = 3,747,455,152.19
  5. Step 5: Solve for x
    x = 3,747,455,152.19/72,068.13
  6. Step 6: Final answer
    x = 51,998.78

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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.