Home / 51,159.12-76,699.80-42,450

Finding the Fourth Proportional to 51,159.12, 76,699.80 and 42,450

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Solution

The fourth proportional to 51,159.12, 76,699.80 and 42,450 is: 63,642.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,159.12 : 76,699.80 = 42,450 : x
  2. Step 2: Convert to fraction form
    51,159.12/76,699.80 = 42,450/x
  3. Step 3: Cross multiply
    51,159.12x = 76,699.80 × 42,450
  4. Step 4: Simplify right side
    51,159.12x = 3,255,906,510
  5. Step 5: Solve for x
    x = 3,255,906,510/51,159.12
  6. Step 6: Final answer
    x = 63,642.74

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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.