Home / 54,816.02-75,649.15-38,688.50

Finding the Fourth Proportional to 54,816.02, 75,649.15 and 38,688.50

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Solution

The fourth proportional to 54,816.02, 75,649.15 and 38,688.50 is: 53,392.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,816.02 : 75,649.15 = 38,688.50 : x
  2. Step 2: Convert to fraction form
    54,816.02/75,649.15 = 38,688.50/x
  3. Step 3: Cross multiply
    54,816.02x = 75,649.15 × 38,688.50
  4. Step 4: Simplify right side
    54,816.02x = 2,926,751,951.73
  5. Step 5: Solve for x
    x = 2,926,751,951.73/54,816.02
  6. Step 6: Final answer
    x = 53,392.27

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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.