Home / 82,870.20-124,305.30-59,542.20

Finding the Fourth Proportional to 82,870.20, 124,305.30 and 59,542.20

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Solution

The fourth proportional to 82,870.20, 124,305.30 and 59,542.20 is: 89,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,870.20 : 124,305.30 = 59,542.20 : x
  2. Step 2: Convert to fraction form
    82,870.20/124,305.30 = 59,542.20/x
  3. Step 3: Cross multiply
    82,870.20x = 124,305.30 × 59,542.20
  4. Step 4: Simplify right side
    82,870.20x = 7,401,411,033.66
  5. Step 5: Solve for x
    x = 7,401,411,033.66/82,870.20
  6. Step 6: Final answer
    x = 89,313.30

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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.