Home / 93,487.26-128,857.08-66,228.37

Finding the Fourth Proportional to 93,487.26, 128,857.08 and 66,228.37

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Solution

The fourth proportional to 93,487.26, 128,857.08 and 66,228.37 is: 91,285.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,487.26 : 128,857.08 = 66,228.37 : x
  2. Step 2: Convert to fraction form
    93,487.26/128,857.08 = 66,228.37/x
  3. Step 3: Cross multiply
    93,487.26x = 128,857.08 × 66,228.37
  4. Step 4: Simplify right side
    93,487.26x = 8,533,993,925.04
  5. Step 5: Solve for x
    x = 8,533,993,925.04/93,487.26
  6. Step 6: Final answer
    x = 91,285.10

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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.