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Finding the Fourth Proportional to 88,376.40, 132,418.80 and 43,907.40

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Solution

The fourth proportional to 88,376.40, 132,418.80 and 43,907.40 is: 65,788.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,376.40 : 132,418.80 = 43,907.40 : x
  2. Step 2: Convert to fraction form
    88,376.40/132,418.80 = 43,907.40/x
  3. Step 3: Cross multiply
    88,376.40x = 132,418.80 × 43,907.40
  4. Step 4: Simplify right side
    88,376.40x = 5,814,165,219.12
  5. Step 5: Solve for x
    x = 5,814,165,219.12/88,376.40
  6. Step 6: Final answer
    x = 65,788.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.