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Finding the Fourth Proportional to 86,034.46, 128,844.04 and 51,741.62

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Solution

The fourth proportional to 86,034.46, 128,844.04 and 51,741.62 is: 77,487.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,034.46 : 128,844.04 = 51,741.62 : x
  2. Step 2: Convert to fraction form
    86,034.46/128,844.04 = 51,741.62/x
  3. Step 3: Cross multiply
    86,034.46x = 128,844.04 × 51,741.62
  4. Step 4: Simplify right side
    86,034.46x = 6,666,599,356.94
  5. Step 5: Solve for x
    x = 6,666,599,356.94/86,034.46
  6. Step 6: Final answer
    x = 77,487.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.