Home / 45,398.96-68,117.16-20,085.18

Finding the Fourth Proportional to 45,398.96, 68,117.16 and 20,085.18

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Solution

The fourth proportional to 45,398.96, 68,117.16 and 20,085.18 is: 30,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,398.96 : 68,117.16 = 20,085.18 : x
  2. Step 2: Convert to fraction form
    45,398.96/68,117.16 = 20,085.18/x
  3. Step 3: Cross multiply
    45,398.96x = 68,117.16 × 20,085.18
  4. Step 4: Simplify right side
    45,398.96x = 1,368,145,419.69
  5. Step 5: Solve for x
    x = 1,368,145,419.69/45,398.96
  6. Step 6: Final answer
    x = 30,136.05

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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.