Home / 81,257.97-112,160.06-47,281.81

Finding the Fourth Proportional to 81,257.97, 112,160.06 and 47,281.81

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Solution

The fourth proportional to 81,257.97, 112,160.06 and 47,281.81 is: 65,262.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,257.97 : 112,160.06 = 47,281.81 : x
  2. Step 2: Convert to fraction form
    81,257.97/112,160.06 = 47,281.81/x
  3. Step 3: Cross multiply
    81,257.97x = 112,160.06 × 47,281.81
  4. Step 4: Simplify right side
    81,257.97x = 5,303,130,646.51
  5. Step 5: Solve for x
    x = 5,303,130,646.51/81,257.97
  6. Step 6: Final answer
    x = 65,262.90

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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.