Home / 86,620.48-129,943.04-26,653.93

Finding the Fourth Proportional to 86,620.48, 129,943.04 and 26,653.93

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Solution

The fourth proportional to 86,620.48, 129,943.04 and 26,653.93 is: 39,984.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,620.48 : 129,943.04 = 26,653.93 : x
  2. Step 2: Convert to fraction form
    86,620.48/129,943.04 = 26,653.93/x
  3. Step 3: Cross multiply
    86,620.48x = 129,943.04 × 26,653.93
  4. Step 4: Simplify right side
    86,620.48x = 3,463,492,692.15
  5. Step 5: Solve for x
    x = 3,463,492,692.15/86,620.48
  6. Step 6: Final answer
    x = 39,984.69

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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.