Home / 45,437.91-68,157.77-12,157.92

Finding the Fourth Proportional to 45,437.91, 68,157.77 and 12,157.92

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Solution

The fourth proportional to 45,437.91, 68,157.77 and 12,157.92 is: 18,237.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,437.91 : 68,157.77 = 12,157.92 : x
  2. Step 2: Convert to fraction form
    45,437.91/68,157.77 = 12,157.92/x
  3. Step 3: Cross multiply
    45,437.91x = 68,157.77 × 12,157.92
  4. Step 4: Simplify right side
    45,437.91x = 828,656,768.23
  5. Step 5: Solve for x
    x = 828,656,768.23/45,437.91
  6. Step 6: Final answer
    x = 18,237.12

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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.