Home / 88,135.71-121,646.48-54,162.06

Finding the Fourth Proportional to 88,135.71, 121,646.48 and 54,162.06

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Solution

The fourth proportional to 88,135.71, 121,646.48 and 54,162.06 is: 74,755.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,135.71 : 121,646.48 = 54,162.06 : x
  2. Step 2: Convert to fraction form
    88,135.71/121,646.48 = 54,162.06/x
  3. Step 3: Cross multiply
    88,135.71x = 121,646.48 × 54,162.06
  4. Step 4: Simplify right side
    88,135.71x = 6,588,623,677.74
  5. Step 5: Solve for x
    x = 6,588,623,677.74/88,135.71
  6. Step 6: Final answer
    x = 74,755.44

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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.