Home / 74,080.38-102,231.64-40,547.10

Finding the Fourth Proportional to 74,080.38, 102,231.64 and 40,547.10

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Solution

The fourth proportional to 74,080.38, 102,231.64 and 40,547.10 is: 55,955.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,080.38 : 102,231.64 = 40,547.10 : x
  2. Step 2: Convert to fraction form
    74,080.38/102,231.64 = 40,547.10/x
  3. Step 3: Cross multiply
    74,080.38x = 102,231.64 × 40,547.10
  4. Step 4: Simplify right side
    74,080.38x = 4,145,195,917.72
  5. Step 5: Solve for x
    x = 4,145,195,917.72/74,080.38
  6. Step 6: Final answer
    x = 55,955.39

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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.