Home / 74,547.81-102,877.43-40,557.11

Finding the Fourth Proportional to 74,547.81, 102,877.43 and 40,557.11

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Solution

The fourth proportional to 74,547.81, 102,877.43 and 40,557.11 is: 55,969.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,547.81 : 102,877.43 = 40,557.11 : x
  2. Step 2: Convert to fraction form
    74,547.81/102,877.43 = 40,557.11/x
  3. Step 3: Cross multiply
    74,547.81x = 102,877.43 × 40,557.11
  4. Step 4: Simplify right side
    74,547.81x = 4,172,410,527.85
  5. Step 5: Solve for x
    x = 4,172,410,527.85/74,547.81
  6. Step 6: Final answer
    x = 55,969.59

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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.