Home / 42,722.40-64,010.70-35,286.60

Finding the Fourth Proportional to 42,722.40, 64,010.70 and 35,286.60

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Solution

The fourth proportional to 42,722.40, 64,010.70 and 35,286.60 is: 52,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,722.40 : 64,010.70 = 35,286.60 : x
  2. Step 2: Convert to fraction form
    42,722.40/64,010.70 = 35,286.60/x
  3. Step 3: Cross multiply
    42,722.40x = 64,010.70 × 35,286.60
  4. Step 4: Simplify right side
    42,722.40x = 2,258,719,966.62
  5. Step 5: Solve for x
    x = 2,258,719,966.62/42,722.40
  6. Step 6: Final answer
    x = 52,869.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.