Home / 45,135.63-67,714.29-13,970.88

Finding the Fourth Proportional to 45,135.63, 67,714.29 and 13,970.88

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Solution

The fourth proportional to 45,135.63, 67,714.29 and 13,970.88 is: 20,959.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,135.63 : 67,714.29 = 13,970.88 : x
  2. Step 2: Convert to fraction form
    45,135.63/67,714.29 = 13,970.88/x
  3. Step 3: Cross multiply
    45,135.63x = 67,714.29 × 13,970.88
  4. Step 4: Simplify right side
    45,135.63x = 946,028,219.88
  5. Step 5: Solve for x
    x = 946,028,219.88/45,135.63
  6. Step 6: Final answer
    x = 20,959.68

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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.