Home / 51,153.12-76,690.80-42,444

Finding the Fourth Proportional to 51,153.12, 76,690.80 and 42,444

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Solution

The fourth proportional to 51,153.12, 76,690.80 and 42,444 is: 63,633.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,153.12 : 76,690.80 = 42,444 : x
  2. Step 2: Convert to fraction form
    51,153.12/76,690.80 = 42,444/x
  3. Step 3: Cross multiply
    51,153.12x = 76,690.80 × 42,444
  4. Step 4: Simplify right side
    51,153.12x = 3,255,064,315.20
  5. Step 5: Solve for x
    x = 3,255,064,315.20/51,153.12
  6. Step 6: Final answer
    x = 63,633.74

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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.