Home / 45,242.96-67,856.88-14,075.78

Finding the Fourth Proportional to 45,242.96, 67,856.88 and 14,075.78

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Solution

The fourth proportional to 45,242.96, 67,856.88 and 14,075.78 is: 21,111.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,242.96 : 67,856.88 = 14,075.78 : x
  2. Step 2: Convert to fraction form
    45,242.96/67,856.88 = 14,075.78/x
  3. Step 3: Cross multiply
    45,242.96x = 67,856.88 × 14,075.78
  4. Step 4: Simplify right side
    45,242.96x = 955,138,514.37
  5. Step 5: Solve for x
    x = 955,138,514.37/45,242.96
  6. Step 6: Final answer
    x = 21,111.32

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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.