Home / 47,613.12-65,710.35-30,657.87

Finding the Fourth Proportional to 47,613.12, 65,710.35 and 30,657.87

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Solution

The fourth proportional to 47,613.12, 65,710.35 and 30,657.87 is: 42,310.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,613.12 : 65,710.35 = 30,657.87 : x
  2. Step 2: Convert to fraction form
    47,613.12/65,710.35 = 30,657.87/x
  3. Step 3: Cross multiply
    47,613.12x = 65,710.35 × 30,657.87
  4. Step 4: Simplify right side
    47,613.12x = 2,014,539,367.95
  5. Step 5: Solve for x
    x = 2,014,539,367.95/47,613.12
  6. Step 6: Final answer
    x = 42,310.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.