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Finding the Fourth Proportional to 64,970.40, 97,455.60 and 35,445.90

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Solution

The fourth proportional to 64,970.40, 97,455.60 and 35,445.90 is: 53,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,970.40 : 97,455.60 = 35,445.90 : x
  2. Step 2: Convert to fraction form
    64,970.40/97,455.60 = 35,445.90/x
  3. Step 3: Cross multiply
    64,970.40x = 97,455.60 × 35,445.90
  4. Step 4: Simplify right side
    64,970.40x = 3,454,401,452.04
  5. Step 5: Solve for x
    x = 3,454,401,452.04/64,970.40
  6. Step 6: Final answer
    x = 53,168.85

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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.