Home / 45,160.81-67,744.32-13,569.55

Finding the Fourth Proportional to 45,160.81, 67,744.32 and 13,569.55

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Solution

The fourth proportional to 45,160.81, 67,744.32 and 13,569.55 is: 20,355.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,160.81 : 67,744.32 = 13,569.55 : x
  2. Step 2: Convert to fraction form
    45,160.81/67,744.32 = 13,569.55/x
  3. Step 3: Cross multiply
    45,160.81x = 67,744.32 × 13,569.55
  4. Step 4: Simplify right side
    45,160.81x = 919,259,937.46
  5. Step 5: Solve for x
    x = 919,259,937.46/45,160.81
  6. Step 6: Final answer
    x = 20,355.26

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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.