Home / 40,160-55,344.40-29,408.18

Finding the Fourth Proportional to 40,160, 55,344.40 and 29,408.18

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Solution

The fourth proportional to 40,160, 55,344.40 and 29,408.18 is: 40,527.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,160 : 55,344.40 = 29,408.18 : x
  2. Step 2: Convert to fraction form
    40,160/55,344.40 = 29,408.18/x
  3. Step 3: Cross multiply
    40,160x = 55,344.40 × 29,408.18
  4. Step 4: Simplify right side
    40,160x = 1,627,578,077.19
  5. Step 5: Solve for x
    x = 1,627,578,077.19/40,160
  6. Step 6: Final answer
    x = 40,527.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.