Home / 40,045.68-60,078.78-13,395.87

Finding the Fourth Proportional to 40,045.68, 60,078.78 and 13,395.87

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Solution

The fourth proportional to 40,045.68, 60,078.78 and 13,395.87 is: 20,097.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,045.68 : 60,078.78 = 13,395.87 : x
  2. Step 2: Convert to fraction form
    40,045.68/60,078.78 = 13,395.87/x
  3. Step 3: Cross multiply
    40,045.68x = 60,078.78 × 13,395.87
  4. Step 4: Simplify right side
    40,045.68x = 804,807,526.64
  5. Step 5: Solve for x
    x = 804,807,526.64/40,045.68
  6. Step 6: Final answer
    x = 20,097.24

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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.