Home / 65,229.12-89,976.38-43,127.84

Finding the Fourth Proportional to 65,229.12, 89,976.38 and 43,127.84

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Solution

The fourth proportional to 65,229.12, 89,976.38 and 43,127.84 is: 59,490.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,229.12 : 89,976.38 = 43,127.84 : x
  2. Step 2: Convert to fraction form
    65,229.12/89,976.38 = 43,127.84/x
  3. Step 3: Cross multiply
    65,229.12x = 89,976.38 × 43,127.84
  4. Step 4: Simplify right side
    65,229.12x = 3,880,486,929.72
  5. Step 5: Solve for x
    x = 3,880,486,929.72/65,229.12
  6. Step 6: Final answer
    x = 59,490.10

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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.