Home / 88,446.60-121,848.66-61,542.90

Finding the Fourth Proportional to 88,446.60, 121,848.66 and 61,542.90

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Solution

The fourth proportional to 88,446.60, 121,848.66 and 61,542.90 is: 84,784.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,446.60 : 121,848.66 = 61,542.90 : x
  2. Step 2: Convert to fraction form
    88,446.60/121,848.66 = 61,542.90/x
  3. Step 3: Cross multiply
    88,446.60x = 121,848.66 × 61,542.90
  4. Step 4: Simplify right side
    88,446.60x = 7,498,919,897.51
  5. Step 5: Solve for x
    x = 7,498,919,897.51/88,446.60
  6. Step 6: Final answer
    x = 84,784.72

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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.