Home / 84,009.28-126,066.70-34,089.60

Finding the Fourth Proportional to 84,009.28, 126,066.70 and 34,089.60

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Solution

The fourth proportional to 84,009.28, 126,066.70 and 34,089.60 is: 51,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,009.28 : 126,066.70 = 34,089.60 : x
  2. Step 2: Convert to fraction form
    84,009.28/126,066.70 = 34,089.60/x
  3. Step 3: Cross multiply
    84,009.28x = 126,066.70 × 34,089.60
  4. Step 4: Simplify right side
    84,009.28x = 4,297,563,376.32
  5. Step 5: Solve for x
    x = 4,297,563,376.32/84,009.28
  6. Step 6: Final answer
    x = 51,155.82

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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.