Home / 65,829.60-98,747.13-21,456.74

Finding the Fourth Proportional to 65,829.60, 98,747.13 and 21,456.74

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Solution

The fourth proportional to 65,829.60, 98,747.13 and 21,456.74 is: 32,186.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,829.60 : 98,747.13 = 21,456.74 : x
  2. Step 2: Convert to fraction form
    65,829.60/98,747.13 = 21,456.74/x
  3. Step 3: Cross multiply
    65,829.60x = 98,747.13 × 21,456.74
  4. Step 4: Simplify right side
    65,829.60x = 2,118,791,494.16
  5. Step 5: Solve for x
    x = 2,118,791,494.16/65,829.60
  6. Step 6: Final answer
    x = 32,186.00

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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.