Home / 90,118.48-124,358.50-49,829.84

Finding the Fourth Proportional to 90,118.48, 124,358.50 and 49,829.84

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Solution

The fourth proportional to 90,118.48, 124,358.50 and 49,829.84 is: 68,762.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,118.48 : 124,358.50 = 49,829.84 : x
  2. Step 2: Convert to fraction form
    90,118.48/124,358.50 = 49,829.84/x
  3. Step 3: Cross multiply
    90,118.48x = 124,358.50 × 49,829.84
  4. Step 4: Simplify right side
    90,118.48x = 6,196,764,157.64
  5. Step 5: Solve for x
    x = 6,196,764,157.64/90,118.48
  6. Step 6: Final answer
    x = 68,762.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.