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Finding the Fourth Proportional to 88,119.50, 121,554 and 56,252.48

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Solution

The fourth proportional to 88,119.50, 121,554 and 56,252.48 is: 77,595.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,119.50 : 121,554 = 56,252.48 : x
  2. Step 2: Convert to fraction form
    88,119.50/121,554 = 56,252.48/x
  3. Step 3: Cross multiply
    88,119.50x = 121,554 × 56,252.48
  4. Step 4: Simplify right side
    88,119.50x = 6,837,713,346.15
  5. Step 5: Solve for x
    x = 6,837,713,346.15/88,119.50
  6. Step 6: Final answer
    x = 77,595.92

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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.