Home / 75,221.55-103,802.04-45,023.49

Finding the Fourth Proportional to 75,221.55, 103,802.04 and 45,023.49

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Solution

The fourth proportional to 75,221.55, 103,802.04 and 45,023.49 is: 62,130.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,221.55 : 103,802.04 = 45,023.49 : x
  2. Step 2: Convert to fraction form
    75,221.55/103,802.04 = 45,023.49/x
  3. Step 3: Cross multiply
    75,221.55x = 103,802.04 × 45,023.49
  4. Step 4: Simplify right side
    75,221.55x = 4,673,530,109.92
  5. Step 5: Solve for x
    x = 4,673,530,109.92/75,221.55
  6. Step 6: Final answer
    x = 62,130.20

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1.5x scale

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.