Home / 81,449.06-112,389.26-45,630.26

Finding the Fourth Proportional to 81,449.06, 112,389.26 and 45,630.26

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Solution

The fourth proportional to 81,449.06, 112,389.26 and 45,630.26 is: 62,963.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,449.06 : 112,389.26 = 45,630.26 : x
  2. Step 2: Convert to fraction form
    81,449.06/112,389.26 = 45,630.26/x
  3. Step 3: Cross multiply
    81,449.06x = 112,389.26 × 45,630.26
  4. Step 4: Simplify right side
    81,449.06x = 5,128,351,155.01
  5. Step 5: Solve for x
    x = 5,128,351,155.01/81,449.06
  6. Step 6: Final answer
    x = 62,963.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.