Home / 82,943.40-124,415.10-30,358.20

Finding the Fourth Proportional to 82,943.40, 124,415.10 and 30,358.20

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Solution

The fourth proportional to 82,943.40, 124,415.10 and 30,358.20 is: 45,537.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,943.40 : 124,415.10 = 30,358.20 : x
  2. Step 2: Convert to fraction form
    82,943.40/124,415.10 = 30,358.20/x
  3. Step 3: Cross multiply
    82,943.40x = 124,415.10 × 30,358.20
  4. Step 4: Simplify right side
    82,943.40x = 3,777,018,488.82
  5. Step 5: Solve for x
    x = 3,777,018,488.82/82,943.40
  6. Step 6: Final answer
    x = 45,537.30

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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.