Home / 86,220.47-129,336.16-27,058.47

Finding the Fourth Proportional to 86,220.47, 129,336.16 and 27,058.47

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Solution

The fourth proportional to 86,220.47, 129,336.16 and 27,058.47 is: 40,589.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,220.47 : 129,336.16 = 27,058.47 : x
  2. Step 2: Convert to fraction form
    86,220.47/129,336.16 = 27,058.47/x
  3. Step 3: Cross multiply
    86,220.47x = 129,336.16 × 27,058.47
  4. Step 4: Simplify right side
    86,220.47x = 3,499,638,830.87
  5. Step 5: Solve for x
    x = 3,499,638,830.87/86,220.47
  6. Step 6: Final answer
    x = 40,589.42

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1.5x scale

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.