Home / 74,205.69-102,402.59-40,670.97

Finding the Fourth Proportional to 74,205.69, 102,402.59 and 40,670.97

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Solution

The fourth proportional to 74,205.69, 102,402.59 and 40,670.97 is: 56,125.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,205.69 : 102,402.59 = 40,670.97 : x
  2. Step 2: Convert to fraction form
    74,205.69/102,402.59 = 40,670.97/x
  3. Step 3: Cross multiply
    74,205.69x = 102,402.59 × 40,670.97
  4. Step 4: Simplify right side
    74,205.69x = 4,164,812,462.46
  5. Step 5: Solve for x
    x = 4,164,812,462.46/74,205.69
  6. Step 6: Final answer
    x = 56,125.24

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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.