Home / 77,964.12-107,250.48-68,360.76

Finding the Fourth Proportional to 77,964.12, 107,250.48 and 68,360.76

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Solution

The fourth proportional to 77,964.12, 107,250.48 and 68,360.76 is: 94,039.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,964.12 : 107,250.48 = 68,360.76 : x
  2. Step 2: Convert to fraction form
    77,964.12/107,250.48 = 68,360.76/x
  3. Step 3: Cross multiply
    77,964.12x = 107,250.48 × 68,360.76
  4. Step 4: Simplify right side
    77,964.12x = 7,331,724,323.16
  5. Step 5: Solve for x
    x = 7,331,724,323.16/77,964.12
  6. Step 6: Final answer
    x = 94,039.72

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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.