Home / 74,084.61-102,235.73-42,254.04

Finding the Fourth Proportional to 74,084.61, 102,235.73 and 42,254.04

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Solution

The fourth proportional to 74,084.61, 102,235.73 and 42,254.04 is: 58,309.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,084.61 : 102,235.73 = 42,254.04 : x
  2. Step 2: Convert to fraction form
    74,084.61/102,235.73 = 42,254.04/x
  3. Step 3: Cross multiply
    74,084.61x = 102,235.73 × 42,254.04
  4. Step 4: Simplify right side
    74,084.61x = 4,319,872,624.85
  5. Step 5: Solve for x
    x = 4,319,872,624.85/74,084.61
  6. Step 6: Final answer
    x = 58,309.99

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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.