Home / 93,458.23-128,970.69-53,171.12

Finding the Fourth Proportional to 93,458.23, 128,970.69 and 53,171.12

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Solution

The fourth proportional to 93,458.23, 128,970.69 and 53,171.12 is: 73,375.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,458.23 : 128,970.69 = 53,171.12 : x
  2. Step 2: Convert to fraction form
    93,458.23/128,970.69 = 53,171.12/x
  3. Step 3: Cross multiply
    93,458.23x = 128,970.69 × 53,171.12
  4. Step 4: Simplify right side
    93,458.23x = 6,857,516,356.90
  5. Step 5: Solve for x
    x = 6,857,516,356.90/93,458.23
  6. Step 6: Final answer
    x = 73,375.20

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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.