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Finding the Fourth Proportional to 86,374, 119,225.95 and 50,575.52

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Solution

The fourth proportional to 86,374, 119,225.95 and 50,575.52 is: 69,811.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,374 : 119,225.95 = 50,575.52 : x
  2. Step 2: Convert to fraction form
    86,374/119,225.95 = 50,575.52/x
  3. Step 3: Cross multiply
    86,374x = 119,225.95 × 50,575.52
  4. Step 4: Simplify right side
    86,374x = 6,029,914,418.74
  5. Step 5: Solve for x
    x = 6,029,914,418.74/86,374
  6. Step 6: Final answer
    x = 69,811.68

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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.