Home / 93,461.15-128,971.89-53,171.12

Finding the Fourth Proportional to 93,461.15, 128,971.89 and 53,171.12

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Solution

The fourth proportional to 93,461.15, 128,971.89 and 53,171.12 is: 73,373.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,461.15 : 128,971.89 = 53,171.12 : x
  2. Step 2: Convert to fraction form
    93,461.15/128,971.89 = 53,171.12/x
  3. Step 3: Cross multiply
    93,461.15x = 128,971.89 × 53,171.12
  4. Step 4: Simplify right side
    93,461.15x = 6,857,579,839.82
  5. Step 5: Solve for x
    x = 6,857,579,839.82/93,461.15
  6. Step 6: Final answer
    x = 73,373.59

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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.