Home / 47,149.62-70,726.95-12,089.58

Finding the Fourth Proportional to 47,149.62, 70,726.95 and 12,089.58

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Solution

The fourth proportional to 47,149.62, 70,726.95 and 12,089.58 is: 18,135.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,149.62 : 70,726.95 = 12,089.58 : x
  2. Step 2: Convert to fraction form
    47,149.62/70,726.95 = 12,089.58/x
  3. Step 3: Cross multiply
    47,149.62x = 70,726.95 × 12,089.58
  4. Step 4: Simplify right side
    47,149.62x = 855,059,120.18
  5. Step 5: Solve for x
    x = 855,059,120.18/47,149.62
  6. Step 6: Final answer
    x = 18,135.02

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1.5x scale

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.