Home / 45,436.12-68,148.77-12,158.75

Finding the Fourth Proportional to 45,436.12, 68,148.77 and 12,158.75

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Solution

The fourth proportional to 45,436.12, 68,148.77 and 12,158.75 is: 18,236.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,436.12 : 68,148.77 = 12,158.75 : x
  2. Step 2: Convert to fraction form
    45,436.12/68,148.77 = 12,158.75/x
  3. Step 3: Cross multiply
    45,436.12x = 68,148.77 × 12,158.75
  4. Step 4: Simplify right side
    45,436.12x = 828,603,966.82
  5. Step 5: Solve for x
    x = 828,603,966.82/45,436.12
  6. Step 6: Final answer
    x = 18,236.68

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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.