Home / 93,450.77-128,960.20-51,009.60

Finding the Fourth Proportional to 93,450.77, 128,960.20 and 51,009.60

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Solution

The fourth proportional to 93,450.77, 128,960.20 and 51,009.60 is: 70,392.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,450.77 : 128,960.20 = 51,009.60 : x
  2. Step 2: Convert to fraction form
    93,450.77/128,960.20 = 51,009.60/x
  3. Step 3: Cross multiply
    93,450.77x = 128,960.20 × 51,009.60
  4. Step 4: Simplify right side
    93,450.77x = 6,578,208,217.92
  5. Step 5: Solve for x
    x = 6,578,208,217.92/93,450.77
  6. Step 6: Final answer
    x = 70,392.23

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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.