Home / 93,991.21-129,708.51-51,550.04

Finding the Fourth Proportional to 93,991.21, 129,708.51 and 51,550.04

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Solution

The fourth proportional to 93,991.21, 129,708.51 and 51,550.04 is: 71,139.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,991.21 : 129,708.51 = 51,550.04 : x
  2. Step 2: Convert to fraction form
    93,991.21/129,708.51 = 51,550.04/x
  3. Step 3: Cross multiply
    93,991.21x = 129,708.51 × 51,550.04
  4. Step 4: Simplify right side
    93,991.21x = 6,686,479,009.80
  5. Step 5: Solve for x
    x = 6,686,479,009.80/93,991.21
  6. Step 6: Final answer
    x = 71,139.41

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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.