Home / 93,286.02-128,633.07-63,018.78

Finding the Fourth Proportional to 93,286.02, 128,633.07 and 63,018.78

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Solution

The fourth proportional to 93,286.02, 128,633.07 and 63,018.78 is: 86,897.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,286.02 : 128,633.07 = 63,018.78 : x
  2. Step 2: Convert to fraction form
    93,286.02/128,633.07 = 63,018.78/x
  3. Step 3: Cross multiply
    93,286.02x = 128,633.07 × 63,018.78
  4. Step 4: Simplify right side
    93,286.02x = 8,106,299,139.05
  5. Step 5: Solve for x
    x = 8,106,299,139.05/93,286.02
  6. Step 6: Final answer
    x = 86,897.26

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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.