Home / 77,645.72-107,152.20-43,652.32

Finding the Fourth Proportional to 77,645.72, 107,152.20 and 43,652.32

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Solution

The fourth proportional to 77,645.72, 107,152.20 and 43,652.32 is: 60,240.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,645.72 : 107,152.20 = 43,652.32 : x
  2. Step 2: Convert to fraction form
    77,645.72/107,152.20 = 43,652.32/x
  3. Step 3: Cross multiply
    77,645.72x = 107,152.20 × 43,652.32
  4. Step 4: Simplify right side
    77,645.72x = 4,677,441,855.22
  5. Step 5: Solve for x
    x = 4,677,441,855.22/77,645.72
  6. Step 6: Final answer
    x = 60,240.82

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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.