Home / 70,519.08-105,779.04-28,418.52

Finding the Fourth Proportional to 70,519.08, 105,779.04 and 28,418.52

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Solution

The fourth proportional to 70,519.08, 105,779.04 and 28,418.52 is: 42,627.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,519.08 : 105,779.04 = 28,418.52 : x
  2. Step 2: Convert to fraction form
    70,519.08/105,779.04 = 28,418.52/x
  3. Step 3: Cross multiply
    70,519.08x = 105,779.04 × 28,418.52
  4. Step 4: Simplify right side
    70,519.08x = 3,006,083,763.82
  5. Step 5: Solve for x
    x = 3,006,083,763.82/70,519.08
  6. Step 6: Final answer
    x = 42,627.95

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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.