Home / 93,031.64-128,389.27-54,816.66

Finding the Fourth Proportional to 93,031.64, 128,389.27 and 54,816.66

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Solution

The fourth proportional to 93,031.64, 128,389.27 and 54,816.66 is: 75,650.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,031.64 : 128,389.27 = 54,816.66 : x
  2. Step 2: Convert to fraction form
    93,031.64/128,389.27 = 54,816.66/x
  3. Step 3: Cross multiply
    93,031.64x = 128,389.27 × 54,816.66
  4. Step 4: Simplify right side
    93,031.64x = 7,037,870,824.20
  5. Step 5: Solve for x
    x = 7,037,870,824.20/93,031.64
  6. Step 6: Final answer
    x = 75,650.30

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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.