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Finding the Fourth Proportional to 77,754.65, 107,151.59 and 56,500.25

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Solution

The fourth proportional to 77,754.65, 107,151.59 and 56,500.25 is: 77,861.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,754.65 : 107,151.59 = 56,500.25 : x
  2. Step 2: Convert to fraction form
    77,754.65/107,151.59 = 56,500.25/x
  3. Step 3: Cross multiply
    77,754.65x = 107,151.59 × 56,500.25
  4. Step 4: Simplify right side
    77,754.65x = 6,054,091,228.39
  5. Step 5: Solve for x
    x = 6,054,091,228.39/77,754.65
  6. Step 6: Final answer
    x = 77,861.47

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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.