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Finding the Fourth Proportional to 65,565.70, 98,348.40 and 28,101.48

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Solution

The fourth proportional to 65,565.70, 98,348.40 and 28,101.48 is: 42,152.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,565.70 : 98,348.40 = 28,101.48 : x
  2. Step 2: Convert to fraction form
    65,565.70/98,348.40 = 28,101.48/x
  3. Step 3: Cross multiply
    65,565.70x = 98,348.40 × 28,101.48
  4. Step 4: Simplify right side
    65,565.70x = 2,763,735,595.63
  5. Step 5: Solve for x
    x = 2,763,735,595.63/65,565.70
  6. Step 6: Final answer
    x = 42,152.16

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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.