Home / 86,542.84-129,830.06-39,794.50

Finding the Fourth Proportional to 86,542.84, 129,830.06 and 39,794.50

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Solution

The fourth proportional to 86,542.84, 129,830.06 and 39,794.50 is: 59,699.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,542.84 : 129,830.06 = 39,794.50 : x
  2. Step 2: Convert to fraction form
    86,542.84/129,830.06 = 39,794.50/x
  3. Step 3: Cross multiply
    86,542.84x = 129,830.06 × 39,794.50
  4. Step 4: Simplify right side
    86,542.84x = 5,166,522,322.67
  5. Step 5: Solve for x
    x = 5,166,522,322.67/86,542.84
  6. Step 6: Final answer
    x = 59,699.02

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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.