Home / 75,653.52-104,407.40-54,145.28

Finding the Fourth Proportional to 75,653.52, 104,407.40 and 54,145.28

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Solution

The fourth proportional to 75,653.52, 104,407.40 and 54,145.28 is: 74,724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,653.52 : 104,407.40 = 54,145.28 : x
  2. Step 2: Convert to fraction form
    75,653.52/104,407.40 = 54,145.28/x
  3. Step 3: Cross multiply
    75,653.52x = 104,407.40 × 54,145.28
  4. Step 4: Simplify right side
    75,653.52x = 5,653,167,907.07
  5. Step 5: Solve for x
    x = 5,653,167,907.07/75,653.52
  6. Step 6: Final answer
    x = 74,724.45

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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.