Home / 81,331.40-112,222.56-46,870.76

Finding the Fourth Proportional to 81,331.40, 112,222.56 and 46,870.76

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Solution

The fourth proportional to 81,331.40, 112,222.56 and 46,870.76 is: 64,673.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331.40 : 112,222.56 = 46,870.76 : x
  2. Step 2: Convert to fraction form
    81,331.40/112,222.56 = 46,870.76/x
  3. Step 3: Cross multiply
    81,331.40x = 112,222.56 × 46,870.76
  4. Step 4: Simplify right side
    81,331.40x = 5,259,956,676.35
  5. Step 5: Solve for x
    x = 5,259,956,676.35/81,331.40
  6. Step 6: Final answer
    x = 64,673.14

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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.