Home / 81,748.84-112,818.58-45,454.36

Finding the Fourth Proportional to 81,748.84, 112,818.58 and 45,454.36

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Solution

The fourth proportional to 81,748.84, 112,818.58 and 45,454.36 is: 62,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,748.84 : 112,818.58 = 45,454.36 : x
  2. Step 2: Convert to fraction form
    81,748.84/112,818.58 = 45,454.36/x
  3. Step 3: Cross multiply
    81,748.84x = 112,818.58 × 45,454.36
  4. Step 4: Simplify right side
    81,748.84x = 5,128,096,350.01
  5. Step 5: Solve for x
    x = 5,128,096,350.01/81,748.84
  6. Step 6: Final answer
    x = 62,729.90

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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.