Home / 45,841.06-68,761.64-12,561.40

Finding the Fourth Proportional to 45,841.06, 68,761.64 and 12,561.40

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Solution

The fourth proportional to 45,841.06, 68,761.64 and 12,561.40 is: 18,842.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,841.06 : 68,761.64 = 12,561.40 : x
  2. Step 2: Convert to fraction form
    45,841.06/68,761.64 = 12,561.40/x
  3. Step 3: Cross multiply
    45,841.06x = 68,761.64 × 12,561.40
  4. Step 4: Simplify right side
    45,841.06x = 863,742,464.70
  5. Step 5: Solve for x
    x = 863,742,464.70/45,841.06
  6. Step 6: Final answer
    x = 18,842.11

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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.