Home / 82,826.40-124,276.05-38,430.30

Finding the Fourth Proportional to 82,826.40, 124,276.05 and 38,430.30

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Solution

The fourth proportional to 82,826.40, 124,276.05 and 38,430.30 is: 57,662.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,826.40 : 124,276.05 = 38,430.30 : x
  2. Step 2: Convert to fraction form
    82,826.40/124,276.05 = 38,430.30/x
  3. Step 3: Cross multiply
    82,826.40x = 124,276.05 × 38,430.30
  4. Step 4: Simplify right side
    82,826.40x = 4,775,965,884.32
  5. Step 5: Solve for x
    x = 4,775,965,884.32/82,826.40
  6. Step 6: Final answer
    x = 57,662.36

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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.