Home / 86,400.75-129,608.55-24,071.25

Finding the Fourth Proportional to 86,400.75, 129,608.55 and 24,071.25

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Solution

The fourth proportional to 86,400.75, 129,608.55 and 24,071.25 is: 36,108.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,400.75 : 129,608.55 = 24,071.25 : x
  2. Step 2: Convert to fraction form
    86,400.75/129,608.55 = 24,071.25/x
  3. Step 3: Cross multiply
    86,400.75x = 129,608.55 × 24,071.25
  4. Step 4: Simplify right side
    86,400.75x = 3,119,839,809.19
  5. Step 5: Solve for x
    x = 3,119,839,809.19/86,400.75
  6. Step 6: Final answer
    x = 36,108.94

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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.