Home / 55,688.43-83,540.99-20,158.07

Finding the Fourth Proportional to 55,688.43, 83,540.99 and 20,158.07

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Solution

The fourth proportional to 55,688.43, 83,540.99 and 20,158.07 is: 30,240.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,688.43 : 83,540.99 = 20,158.07 : x
  2. Step 2: Convert to fraction form
    55,688.43/83,540.99 = 20,158.07/x
  3. Step 3: Cross multiply
    55,688.43x = 83,540.99 × 20,158.07
  4. Step 4: Simplify right side
    55,688.43x = 1,684,024,605.79
  5. Step 5: Solve for x
    x = 1,684,024,605.79/55,688.43
  6. Step 6: Final answer
    x = 30,240.12

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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.