Home / 45,420.76-68,134.02-14,257.24

Finding the Fourth Proportional to 45,420.76, 68,134.02 and 14,257.24

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Solution

The fourth proportional to 45,420.76, 68,134.02 and 14,257.24 is: 21,386.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420.76 : 68,134.02 = 14,257.24 : x
  2. Step 2: Convert to fraction form
    45,420.76/68,134.02 = 14,257.24/x
  3. Step 3: Cross multiply
    45,420.76x = 68,134.02 × 14,257.24
  4. Step 4: Simplify right side
    45,420.76x = 971,403,075.30
  5. Step 5: Solve for x
    x = 971,403,075.30/45,420.76
  6. Step 6: Final answer
    x = 21,386.76

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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.