Home / 65,760.96-98,632.13-21,388.35

Finding the Fourth Proportional to 65,760.96, 98,632.13 and 21,388.35

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Solution

The fourth proportional to 65,760.96, 98,632.13 and 21,388.35 is: 32,079.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,760.96 : 98,632.13 = 21,388.35 : x
  2. Step 2: Convert to fraction form
    65,760.96/98,632.13 = 21,388.35/x
  3. Step 3: Cross multiply
    65,760.96x = 98,632.13 × 21,388.35
  4. Step 4: Simplify right side
    65,760.96x = 2,109,578,410.74
  5. Step 5: Solve for x
    x = 2,109,578,410.74/65,760.96
  6. Step 6: Final answer
    x = 32,079.50

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1.5x scale

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.