Home / 76,368.40-105,388.97-42,377.02

Finding the Fourth Proportional to 76,368.40, 105,388.97 and 42,377.02

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Solution

The fourth proportional to 76,368.40, 105,388.97 and 42,377.02 is: 58,480.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,368.40 : 105,388.97 = 42,377.02 : x
  2. Step 2: Convert to fraction form
    76,368.40/105,388.97 = 42,377.02/x
  3. Step 3: Cross multiply
    76,368.40x = 105,388.97 × 42,377.02
  4. Step 4: Simplify right side
    76,368.40x = 4,466,070,489.47
  5. Step 5: Solve for x
    x = 4,466,070,489.47/76,368.40
  6. Step 6: Final answer
    x = 58,480.61

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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.