Home / 81,257.40-112,141.26-47,276.28

Finding the Fourth Proportional to 81,257.40, 112,141.26 and 47,276.28

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Solution

The fourth proportional to 81,257.40, 112,141.26 and 47,276.28 is: 65,244.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,257.40 : 112,141.26 = 47,276.28 : x
  2. Step 2: Convert to fraction form
    81,257.40/112,141.26 = 47,276.28/x
  3. Step 3: Cross multiply
    81,257.40x = 112,141.26 × 47,276.28
  4. Step 4: Simplify right side
    81,257.40x = 5,301,621,607.31
  5. Step 5: Solve for x
    x = 5,301,621,607.31/81,257.40
  6. Step 6: Final answer
    x = 65,244.79

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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.