Home / 93,991.40-129,708.77-51,550.23

Finding the Fourth Proportional to 93,991.40, 129,708.77 and 51,550.23

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Solution

The fourth proportional to 93,991.40, 129,708.77 and 51,550.23 is: 71,139.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,991.40 : 129,708.77 = 51,550.23 : x
  2. Step 2: Convert to fraction form
    93,991.40/129,708.77 = 51,550.23/x
  3. Step 3: Cross multiply
    93,991.40x = 129,708.77 × 51,550.23
  4. Step 4: Simplify right side
    93,991.40x = 6,686,516,668.77
  5. Step 5: Solve for x
    x = 6,686,516,668.77/93,991.40
  6. Step 6: Final answer
    x = 71,139.67

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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.