Home / 93,390.17-128,882.03-53,107.56

Finding the Fourth Proportional to 93,390.17, 128,882.03 and 53,107.56

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Solution

The fourth proportional to 93,390.17, 128,882.03 and 53,107.56 is: 73,290.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,390.17 : 128,882.03 = 53,107.56 : x
  2. Step 2: Convert to fraction form
    93,390.17/128,882.03 = 53,107.56/x
  3. Step 3: Cross multiply
    93,390.17x = 128,882.03 × 53,107.56
  4. Step 4: Simplify right side
    93,390.17x = 6,844,609,875.61
  5. Step 5: Solve for x
    x = 6,844,609,875.61/93,390.17
  6. Step 6: Final answer
    x = 73,290.48

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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.