Home / 77,855.32-107,440.34-42,045.34

Finding the Fourth Proportional to 77,855.32, 107,440.34 and 42,045.34

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Solution

The fourth proportional to 77,855.32, 107,440.34 and 42,045.34 is: 58,022.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,855.32 : 107,440.34 = 42,045.34 : x
  2. Step 2: Convert to fraction form
    77,855.32/107,440.34 = 42,045.34/x
  3. Step 3: Cross multiply
    77,855.32x = 107,440.34 × 42,045.34
  4. Step 4: Simplify right side
    77,855.32x = 4,517,365,625.02
  5. Step 5: Solve for x
    x = 4,517,365,625.02/77,855.32
  6. Step 6: Final answer
    x = 58,022.57

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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.