Home / 51,714.18-77,578.56-18,427.12

Finding the Fourth Proportional to 51,714.18, 77,578.56 and 18,427.12

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Solution

The fourth proportional to 51,714.18, 77,578.56 and 18,427.12 is: 27,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,714.18 : 77,578.56 = 18,427.12 : x
  2. Step 2: Convert to fraction form
    51,714.18/77,578.56 = 18,427.12/x
  3. Step 3: Cross multiply
    51,714.18x = 77,578.56 × 18,427.12
  4. Step 4: Simplify right side
    51,714.18x = 1,429,549,434.55
  5. Step 5: Solve for x
    x = 1,429,549,434.55/51,714.18
  6. Step 6: Final answer
    x = 27,643.28

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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.