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Finding the Fourth Proportional to 60,430, 90,580.20 and 29,196.40

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Solution

The fourth proportional to 60,430, 90,580.20 and 29,196.40 is: 43,763.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,430 : 90,580.20 = 29,196.40 : x
  2. Step 2: Convert to fraction form
    60,430/90,580.20 = 29,196.40/x
  3. Step 3: Cross multiply
    60,430x = 90,580.20 × 29,196.40
  4. Step 4: Simplify right side
    60,430x = 2,644,615,751.28
  5. Step 5: Solve for x
    x = 2,644,615,751.28/60,430
  6. Step 6: Final answer
    x = 43,763.29

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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.