Home / 74,215.62-102,417.69-40,681.86

Finding the Fourth Proportional to 74,215.62, 102,417.69 and 40,681.86

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Solution

The fourth proportional to 74,215.62, 102,417.69 and 40,681.86 is: 56,141.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,215.62 : 102,417.69 = 40,681.86 : x
  2. Step 2: Convert to fraction form
    74,215.62/102,417.69 = 40,681.86/x
  3. Step 3: Cross multiply
    74,215.62x = 102,417.69 × 40,681.86
  4. Step 4: Simplify right side
    74,215.62x = 4,166,542,126.10
  5. Step 5: Solve for x
    x = 4,166,542,126.10/74,215.62
  6. Step 6: Final answer
    x = 56,141.04

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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.