Home / 84,253.28-126,457.68-42,729.44

Finding the Fourth Proportional to 84,253.28, 126,457.68 and 42,729.44

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Solution

The fourth proportional to 84,253.28, 126,457.68 and 42,729.44 is: 64,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,253.28 : 126,457.68 = 42,729.44 : x
  2. Step 2: Convert to fraction form
    84,253.28/126,457.68 = 42,729.44/x
  3. Step 3: Cross multiply
    84,253.28x = 126,457.68 × 42,729.44
  4. Step 4: Simplify right side
    84,253.28x = 5,403,465,850.10
  5. Step 5: Solve for x
    x = 5,403,465,850.10/84,253.28
  6. Step 6: Final answer
    x = 64,133.60

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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.