Home / 83,460.26-125,190.48-21,130.76

Finding the Fourth Proportional to 83,460.26, 125,190.48 and 21,130.76

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Solution

The fourth proportional to 83,460.26, 125,190.48 and 21,130.76 is: 31,696.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,460.26 : 125,190.48 = 21,130.76 : x
  2. Step 2: Convert to fraction form
    83,460.26/125,190.48 = 21,130.76/x
  3. Step 3: Cross multiply
    83,460.26x = 125,190.48 × 21,130.76
  4. Step 4: Simplify right side
    83,460.26x = 2,645,369,987.16
  5. Step 5: Solve for x
    x = 2,645,369,987.16/83,460.26
  6. Step 6: Final answer
    x = 31,696.16

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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.