Home / 74,322.76-102,564.88-40,330.38

Finding the Fourth Proportional to 74,322.76, 102,564.88 and 40,330.38

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Solution

The fourth proportional to 74,322.76, 102,564.88 and 40,330.38 is: 55,655.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,322.76 : 102,564.88 = 40,330.38 : x
  2. Step 2: Convert to fraction form
    74,322.76/102,564.88 = 40,330.38/x
  3. Step 3: Cross multiply
    74,322.76x = 102,564.88 × 40,330.38
  4. Step 4: Simplify right side
    74,322.76x = 4,136,480,585.05
  5. Step 5: Solve for x
    x = 4,136,480,585.05/74,322.76
  6. Step 6: Final answer
    x = 55,655.64

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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.