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Finding the Fourth Proportional to 86,994.84, 120,050.84 and 51,187.17

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Solution

The fourth proportional to 86,994.84, 120,050.84 and 51,187.17 is: 70,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,994.84 : 120,050.84 = 51,187.17 : x
  2. Step 2: Convert to fraction form
    86,994.84/120,050.84 = 51,187.17/x
  3. Step 3: Cross multiply
    86,994.84x = 120,050.84 × 51,187.17
  4. Step 4: Simplify right side
    86,994.84x = 6,145,063,333.88
  5. Step 5: Solve for x
    x = 6,145,063,333.88/86,994.84
  6. Step 6: Final answer
    x = 70,637.10

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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.