Home / 52,118.12-78,176.55-12,675.28

Finding the Fourth Proportional to 52,118.12, 78,176.55 and 12,675.28

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Solution

The fourth proportional to 52,118.12, 78,176.55 and 12,675.28 is: 19,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,118.12 : 78,176.55 = 12,675.28 : x
  2. Step 2: Convert to fraction form
    52,118.12/78,176.55 = 12,675.28/x
  3. Step 3: Cross multiply
    52,118.12x = 78,176.55 × 12,675.28
  4. Step 4: Simplify right side
    52,118.12x = 990,909,465.24
  5. Step 5: Solve for x
    x = 990,909,465.24/52,118.12
  6. Step 6: Final answer
    x = 19,012.76

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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.