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Finding the Fourth Proportional to 64,967.20, 97,450.80 and 61,030.60

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Solution

The fourth proportional to 64,967.20, 97,450.80 and 61,030.60 is: 91,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,967.20 : 97,450.80 = 61,030.60 : x
  2. Step 2: Convert to fraction form
    64,967.20/97,450.80 = 61,030.60/x
  3. Step 3: Cross multiply
    64,967.20x = 97,450.80 × 61,030.60
  4. Step 4: Simplify right side
    64,967.20x = 5,947,480,794.48
  5. Step 5: Solve for x
    x = 5,947,480,794.48/64,967.20
  6. Step 6: Final answer
    x = 91,545.90

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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.