Home / 65,719.90-98,543.40-28,273.60

Finding the Fourth Proportional to 65,719.90, 98,543.40 and 28,273.60

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Solution

The fourth proportional to 65,719.90, 98,543.40 and 28,273.60 is: 42,394.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,719.90 : 98,543.40 = 28,273.60 : x
  2. Step 2: Convert to fraction form
    65,719.90/98,543.40 = 28,273.60/x
  3. Step 3: Cross multiply
    65,719.90x = 98,543.40 × 28,273.60
  4. Step 4: Simplify right side
    65,719.90x = 2,786,176,674.24
  5. Step 5: Solve for x
    x = 2,786,176,674.24/65,719.90
  6. Step 6: Final answer
    x = 42,394.72

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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.