Home / 74,918.81-103,386.69-40,926.42

Finding the Fourth Proportional to 74,918.81, 103,386.69 and 40,926.42

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Solution

The fourth proportional to 74,918.81, 103,386.69 and 40,926.42 is: 56,477.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,918.81 : 103,386.69 = 40,926.42 : x
  2. Step 2: Convert to fraction form
    74,918.81/103,386.69 = 40,926.42/x
  3. Step 3: Cross multiply
    74,918.81x = 103,386.69 × 40,926.42
  4. Step 4: Simplify right side
    74,918.81x = 4,231,247,097.35
  5. Step 5: Solve for x
    x = 4,231,247,097.35/74,918.81
  6. Step 6: Final answer
    x = 56,477.77

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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.