Home / 71,971.20-99,366.48-45,150.48

Finding the Fourth Proportional to 71,971.20, 99,366.48 and 45,150.48

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Solution

The fourth proportional to 71,971.20, 99,366.48 and 45,150.48 is: 62,336.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,971.20 : 99,366.48 = 45,150.48 : x
  2. Step 2: Convert to fraction form
    71,971.20/99,366.48 = 45,150.48/x
  3. Step 3: Cross multiply
    71,971.20x = 99,366.48 × 45,150.48
  4. Step 4: Simplify right side
    71,971.20x = 4,486,444,267.91
  5. Step 5: Solve for x
    x = 4,486,444,267.91/71,971.20
  6. Step 6: Final answer
    x = 62,336.66

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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.