Home / 65,580.04-98,342.90-20,586.36

Finding the Fourth Proportional to 65,580.04, 98,342.90 and 20,586.36

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Solution

The fourth proportional to 65,580.04, 98,342.90 and 20,586.36 is: 30,871.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,580.04 : 98,342.90 = 20,586.36 : x
  2. Step 2: Convert to fraction form
    65,580.04/98,342.90 = 20,586.36/x
  3. Step 3: Cross multiply
    65,580.04x = 98,342.90 × 20,586.36
  4. Step 4: Simplify right side
    65,580.04x = 2,024,522,342.84
  5. Step 5: Solve for x
    x = 2,024,522,342.84/65,580.04
  6. Step 6: Final answer
    x = 30,871.02

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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.