Home / 93,867.12-129,553.20-56,141.28

Finding the Fourth Proportional to 93,867.12, 129,553.20 and 56,141.28

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Solution

The fourth proportional to 93,867.12, 129,553.20 and 56,141.28 is: 77,484.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,867.12 : 129,553.20 = 56,141.28 : x
  2. Step 2: Convert to fraction form
    93,867.12/129,553.20 = 56,141.28/x
  3. Step 3: Cross multiply
    93,867.12x = 129,553.20 × 56,141.28
  4. Step 4: Simplify right side
    93,867.12x = 7,273,282,476.10
  5. Step 5: Solve for x
    x = 7,273,282,476.10/93,867.12
  6. Step 6: Final answer
    x = 77,484.88

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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.