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Finding the Fourth Proportional to 51,254.88, 70,734.96 and 28,900.32

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Solution

The fourth proportional to 51,254.88, 70,734.96 and 28,900.32 is: 39,884.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,254.88 : 70,734.96 = 28,900.32 : x
  2. Step 2: Convert to fraction form
    51,254.88/70,734.96 = 28,900.32/x
  3. Step 3: Cross multiply
    51,254.88x = 70,734.96 × 28,900.32
  4. Step 4: Simplify right side
    51,254.88x = 2,044,262,979.19
  5. Step 5: Solve for x
    x = 2,044,262,979.19/51,254.88
  6. Step 6: Final answer
    x = 39,884.26

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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.