Home / 51,531.54-77,648.32-42,376.62

Finding the Fourth Proportional to 51,531.54, 77,648.32 and 42,376.62

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Solution

The fourth proportional to 51,531.54, 77,648.32 and 42,376.62 is: 63,853.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,531.54 : 77,648.32 = 42,376.62 : x
  2. Step 2: Convert to fraction form
    51,531.54/77,648.32 = 42,376.62/x
  3. Step 3: Cross multiply
    51,531.54x = 77,648.32 × 42,376.62
  4. Step 4: Simplify right side
    51,531.54x = 3,290,473,244.34
  5. Step 5: Solve for x
    x = 3,290,473,244.34/51,531.54
  6. Step 6: Final answer
    x = 63,853.58

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.