Home / 93,180.10-128,585.03-56,942.14

Finding the Fourth Proportional to 93,180.10, 128,585.03 and 56,942.14

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Solution

The fourth proportional to 93,180.10, 128,585.03 and 56,942.14 is: 78,578.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,180.10 : 128,585.03 = 56,942.14 : x
  2. Step 2: Convert to fraction form
    93,180.10/128,585.03 = 56,942.14/x
  3. Step 3: Cross multiply
    93,180.10x = 128,585.03 × 56,942.14
  4. Step 4: Simplify right side
    93,180.10x = 7,321,906,495.45
  5. Step 5: Solve for x
    x = 7,321,906,495.45/93,180.10
  6. Step 6: Final answer
    x = 78,578.01

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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.