Home / 65,468.39-90,343.98-40,017.38

Finding the Fourth Proportional to 65,468.39, 90,343.98 and 40,017.38

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Solution

The fourth proportional to 65,468.39, 90,343.98 and 40,017.38 is: 55,222.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,468.39 : 90,343.98 = 40,017.38 : x
  2. Step 2: Convert to fraction form
    65,468.39/90,343.98 = 40,017.38/x
  3. Step 3: Cross multiply
    65,468.39x = 90,343.98 × 40,017.38
  4. Step 4: Simplify right side
    65,468.39x = 3,615,329,604.23
  5. Step 5: Solve for x
    x = 3,615,329,604.23/65,468.39
  6. Step 6: Final answer
    x = 55,222.52

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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.