Home / 47,863.12-66,051.48-28,987.12

Finding the Fourth Proportional to 47,863.12, 66,051.48 and 28,987.12

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Solution

The fourth proportional to 47,863.12, 66,051.48 and 28,987.12 is: 40,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,863.12 : 66,051.48 = 28,987.12 : x
  2. Step 2: Convert to fraction form
    47,863.12/66,051.48 = 28,987.12/x
  3. Step 3: Cross multiply
    47,863.12x = 66,051.48 × 28,987.12
  4. Step 4: Simplify right side
    47,863.12x = 1,914,642,176.94
  5. Step 5: Solve for x
    x = 1,914,642,176.94/47,863.12
  6. Step 6: Final answer
    x = 40,002.45

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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.