Home / 93,065.09-128,431.19-57,233.93

Finding the Fourth Proportional to 93,065.09, 128,431.19 and 57,233.93

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Solution

The fourth proportional to 93,065.09, 128,431.19 and 57,233.93 is: 78,983.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,065.09 : 128,431.19 = 57,233.93 : x
  2. Step 2: Convert to fraction form
    93,065.09/128,431.19 = 57,233.93/x
  3. Step 3: Cross multiply
    93,065.09x = 128,431.19 × 57,233.93
  4. Step 4: Simplify right side
    93,065.09x = 7,350,621,738.28
  5. Step 5: Solve for x
    x = 7,350,621,738.28/93,065.09
  6. Step 6: Final answer
    x = 78,983.66

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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.