Home / 42,401.20-63,601.80-38,318.80

Finding the Fourth Proportional to 42,401.20, 63,601.80 and 38,318.80

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Solution

The fourth proportional to 42,401.20, 63,601.80 and 38,318.80 is: 57,478.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,401.20 : 63,601.80 = 38,318.80 : x
  2. Step 2: Convert to fraction form
    42,401.20/63,601.80 = 38,318.80/x
  3. Step 3: Cross multiply
    42,401.20x = 63,601.80 × 38,318.80
  4. Step 4: Simplify right side
    42,401.20x = 2,437,144,653.84
  5. Step 5: Solve for x
    x = 2,437,144,653.84/42,401.20
  6. Step 6: Final answer
    x = 57,478.20

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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.