Home / 82,913.40-124,355.70-30,295.80

Finding the Fourth Proportional to 82,913.40, 124,355.70 and 30,295.80

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Solution

The fourth proportional to 82,913.40, 124,355.70 and 30,295.80 is: 45,438.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,913.40 : 124,355.70 = 30,295.80 : x
  2. Step 2: Convert to fraction form
    82,913.40/124,355.70 = 30,295.80/x
  3. Step 3: Cross multiply
    82,913.40x = 124,355.70 × 30,295.80
  4. Step 4: Simplify right side
    82,913.40x = 3,767,455,416.06
  5. Step 5: Solve for x
    x = 3,767,455,416.06/82,913.40
  6. Step 6: Final answer
    x = 45,438.44

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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.