Home / 86,203.50-129,356.55-39,460.02

Finding the Fourth Proportional to 86,203.50, 129,356.55 and 39,460.02

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Solution

The fourth proportional to 86,203.50, 129,356.55 and 39,460.02 is: 59,213.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,203.50 : 129,356.55 = 39,460.02 : x
  2. Step 2: Convert to fraction form
    86,203.50/129,356.55 = 39,460.02/x
  3. Step 3: Cross multiply
    86,203.50x = 129,356.55 × 39,460.02
  4. Step 4: Simplify right side
    86,203.50x = 5,104,412,050.13
  5. Step 5: Solve for x
    x = 5,104,412,050.13/86,203.50
  6. Step 6: Final answer
    x = 59,213.51

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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.