Home / 55,426.85-83,148.47-20,363.78

Finding the Fourth Proportional to 55,426.85, 83,148.47 and 20,363.78

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Solution

The fourth proportional to 55,426.85, 83,148.47 and 20,363.78 is: 30,548.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,426.85 : 83,148.47 = 20,363.78 : x
  2. Step 2: Convert to fraction form
    55,426.85/83,148.47 = 20,363.78/x
  3. Step 3: Cross multiply
    55,426.85x = 83,148.47 × 20,363.78
  4. Step 4: Simplify right side
    55,426.85x = 1,693,216,632.86
  5. Step 5: Solve for x
    x = 1,693,216,632.86/55,426.85
  6. Step 6: Final answer
    x = 30,548.67

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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.