Home / 91,054.84-125,369.75-77,416.06

Finding the Fourth Proportional to 91,054.84, 125,369.75 and 77,416.06

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Solution

The fourth proportional to 91,054.84, 125,369.75 and 77,416.06 is: 106,591.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,054.84 : 125,369.75 = 77,416.06 : x
  2. Step 2: Convert to fraction form
    91,054.84/125,369.75 = 77,416.06/x
  3. Step 3: Cross multiply
    91,054.84x = 125,369.75 × 77,416.06
  4. Step 4: Simplify right side
    91,054.84x = 9,705,632,011.64
  5. Step 5: Solve for x
    x = 9,705,632,011.64/91,054.84
  6. Step 6: Final answer
    x = 106,591.06

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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.