Home / 89,039.04-122,866.56-51,315.84

Finding the Fourth Proportional to 89,039.04, 122,866.56 and 51,315.84

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Solution

The fourth proportional to 89,039.04, 122,866.56 and 51,315.84 is: 70,811.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,039.04 : 122,866.56 = 51,315.84 : x
  2. Step 2: Convert to fraction form
    89,039.04/122,866.56 = 51,315.84/x
  3. Step 3: Cross multiply
    89,039.04x = 122,866.56 × 51,315.84
  4. Step 4: Simplify right side
    89,039.04x = 6,305,000,734.31
  5. Step 5: Solve for x
    x = 6,305,000,734.31/89,039.04
  6. Step 6: Final answer
    x = 70,811.64

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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.