Home / 86,297.02-129,460.29-39,553.90

Finding the Fourth Proportional to 86,297.02, 129,460.29 and 39,553.90

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Solution

The fourth proportional to 86,297.02, 129,460.29 and 39,553.90 is: 59,337.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,297.02 : 129,460.29 = 39,553.90 : x
  2. Step 2: Convert to fraction form
    86,297.02/129,460.29 = 39,553.90/x
  3. Step 3: Cross multiply
    86,297.02x = 129,460.29 × 39,553.90
  4. Step 4: Simplify right side
    86,297.02x = 5,120,659,364.63
  5. Step 5: Solve for x
    x = 5,120,659,364.63/86,297.02
  6. Step 6: Final answer
    x = 59,337.62

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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.