Home / 40,188.36-55,466.52-38,416.68

Finding the Fourth Proportional to 40,188.36, 55,466.52 and 38,416.68

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Solution

The fourth proportional to 40,188.36, 55,466.52 and 38,416.68 is: 53,021.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,188.36 : 55,466.52 = 38,416.68 : x
  2. Step 2: Convert to fraction form
    40,188.36/55,466.52 = 38,416.68/x
  3. Step 3: Cross multiply
    40,188.36x = 55,466.52 × 38,416.68
  4. Step 4: Simplify right side
    40,188.36x = 2,130,839,549.55
  5. Step 5: Solve for x
    x = 2,130,839,549.55/40,188.36
  6. Step 6: Final answer
    x = 53,021.31

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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.