Home / 81,365.18-112,278.62-45,554.86

Finding the Fourth Proportional to 81,365.18, 112,278.62 and 45,554.86

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Solution

The fourth proportional to 81,365.18, 112,278.62 and 45,554.86 is: 62,862.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,365.18 : 112,278.62 = 45,554.86 : x
  2. Step 2: Convert to fraction form
    81,365.18/112,278.62 = 45,554.86/x
  3. Step 3: Cross multiply
    81,365.18x = 112,278.62 × 45,554.86
  4. Step 4: Simplify right side
    81,365.18x = 5,114,836,815.09
  5. Step 5: Solve for x
    x = 5,114,836,815.09/81,365.18
  6. Step 6: Final answer
    x = 62,862.72

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1.5x scale

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.