Home / 45,985.84-68,842.68-28,399.12

Finding the Fourth Proportional to 45,985.84, 68,842.68 and 28,399.12

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Solution

The fourth proportional to 45,985.84, 68,842.68 and 28,399.12 is: 42,514.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,985.84 : 68,842.68 = 28,399.12 : x
  2. Step 2: Convert to fraction form
    45,985.84/68,842.68 = 28,399.12/x
  3. Step 3: Cross multiply
    45,985.84x = 68,842.68 × 28,399.12
  4. Step 4: Simplify right side
    45,985.84x = 1,955,071,530.44
  5. Step 5: Solve for x
    x = 1,955,071,530.44/45,985.84
  6. Step 6: Final answer
    x = 42,514.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.