Home / 93,052.09-128,370.70-57,220.93

Finding the Fourth Proportional to 93,052.09, 128,370.70 and 57,220.93

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Solution

The fourth proportional to 93,052.09, 128,370.70 and 57,220.93 is: 78,939.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,052.09 : 128,370.70 = 57,220.93 : x
  2. Step 2: Convert to fraction form
    93,052.09/128,370.70 = 57,220.93/x
  3. Step 3: Cross multiply
    93,052.09x = 128,370.70 × 57,220.93
  4. Step 4: Simplify right side
    93,052.09x = 7,345,490,838.75
  5. Step 5: Solve for x
    x = 7,345,490,838.75/93,052.09
  6. Step 6: Final answer
    x = 78,939.56

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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.