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Finding the Fourth Proportional to 60,801.60, 91,202.40 and 21,354.60

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Solution

The fourth proportional to 60,801.60, 91,202.40 and 21,354.60 is: 32,031.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,801.60 : 91,202.40 = 21,354.60 : x
  2. Step 2: Convert to fraction form
    60,801.60/91,202.40 = 21,354.60/x
  3. Step 3: Cross multiply
    60,801.60x = 91,202.40 × 21,354.60
  4. Step 4: Simplify right side
    60,801.60x = 1,947,590,771.04
  5. Step 5: Solve for x
    x = 1,947,590,771.04/60,801.60
  6. Step 6: Final answer
    x = 32,031.90

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1.5x scale

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.