Home / 75,145.77-103,653.14-52,476.30

Finding the Fourth Proportional to 75,145.77, 103,653.14 and 52,476.30

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Solution

The fourth proportional to 75,145.77, 103,653.14 and 52,476.30 is: 72,383.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,145.77 : 103,653.14 = 52,476.30 : x
  2. Step 2: Convert to fraction form
    75,145.77/103,653.14 = 52,476.30/x
  3. Step 3: Cross multiply
    75,145.77x = 103,653.14 × 52,476.30
  4. Step 4: Simplify right side
    75,145.77x = 5,439,333,008.20
  5. Step 5: Solve for x
    x = 5,439,333,008.20/75,145.77
  6. Step 6: Final answer
    x = 72,383.76

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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.