Home / 78,144.32-107,846.88-44,615.36

Finding the Fourth Proportional to 78,144.32, 107,846.88 and 44,615.36

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Solution

The fourth proportional to 78,144.32, 107,846.88 and 44,615.36 is: 61,573.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,144.32 : 107,846.88 = 44,615.36 : x
  2. Step 2: Convert to fraction form
    78,144.32/107,846.88 = 44,615.36/x
  3. Step 3: Cross multiply
    78,144.32x = 107,846.88 × 44,615.36
  4. Step 4: Simplify right side
    78,144.32x = 4,811,627,376.08
  5. Step 5: Solve for x
    x = 4,811,627,376.08/78,144.32
  6. Step 6: Final answer
    x = 61,573.60

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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.