Home / 81,356.32-112,252.40-47,344.22

Finding the Fourth Proportional to 81,356.32, 112,252.40 and 47,344.22

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Solution

The fourth proportional to 81,356.32, 112,252.40 and 47,344.22 is: 65,323.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,356.32 : 112,252.40 = 47,344.22 : x
  2. Step 2: Convert to fraction form
    81,356.32/112,252.40 = 47,344.22/x
  3. Step 3: Cross multiply
    81,356.32x = 112,252.40 × 47,344.22
  4. Step 4: Simplify right side
    81,356.32x = 5,314,502,321.13
  5. Step 5: Solve for x
    x = 5,314,502,321.13/81,356.32
  6. Step 6: Final answer
    x = 65,323.78

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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.