Home / 45,953.49-68,903.60-20,980.18

Finding the Fourth Proportional to 45,953.49, 68,903.60 and 20,980.18

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Solution

The fourth proportional to 45,953.49, 68,903.60 and 20,980.18 is: 31,458.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,953.49 : 68,903.60 = 20,980.18 : x
  2. Step 2: Convert to fraction form
    45,953.49/68,903.60 = 20,980.18/x
  3. Step 3: Cross multiply
    45,953.49x = 68,903.60 × 20,980.18
  4. Step 4: Simplify right side
    45,953.49x = 1,445,609,911.88
  5. Step 5: Solve for x
    x = 1,445,609,911.88/45,953.49
  6. Step 6: Final answer
    x = 31,458.11

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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.