Home / 77,257.29-106,612.57-42,800.60

Finding the Fourth Proportional to 77,257.29, 106,612.57 and 42,800.60

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Solution

The fourth proportional to 77,257.29, 106,612.57 and 42,800.60 is: 59,063.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,257.29 : 106,612.57 = 42,800.60 : x
  2. Step 2: Convert to fraction form
    77,257.29/106,612.57 = 42,800.60/x
  3. Step 3: Cross multiply
    77,257.29x = 106,612.57 × 42,800.60
  4. Step 4: Simplify right side
    77,257.29x = 4,563,081,978.43
  5. Step 5: Solve for x
    x = 4,563,081,978.43/77,257.29
  6. Step 6: Final answer
    x = 59,063.45

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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.