Home / 81,549.70-112,434.39-52,818.58

Finding the Fourth Proportional to 81,549.70, 112,434.39 and 52,818.58

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Solution

The fourth proportional to 81,549.70, 112,434.39 and 52,818.58 is: 72,822.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,549.70 : 112,434.39 = 52,818.58 : x
  2. Step 2: Convert to fraction form
    81,549.70/112,434.39 = 52,818.58/x
  3. Step 3: Cross multiply
    81,549.70x = 112,434.39 × 52,818.58
  4. Step 4: Simplify right side
    81,549.70x = 5,938,624,822.97
  5. Step 5: Solve for x
    x = 5,938,624,822.97/81,549.70
  6. Step 6: Final answer
    x = 72,822.15

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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.