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Finding the Fourth Proportional to 64,930.40, 97,395.60 and 25,488.80

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Solution

The fourth proportional to 64,930.40, 97,395.60 and 25,488.80 is: 38,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,930.40 : 97,395.60 = 25,488.80 : x
  2. Step 2: Convert to fraction form
    64,930.40/97,395.60 = 25,488.80/x
  3. Step 3: Cross multiply
    64,930.40x = 97,395.60 × 25,488.80
  4. Step 4: Simplify right side
    64,930.40x = 2,482,496,969.28
  5. Step 5: Solve for x
    x = 2,482,496,969.28/64,930.40
  6. Step 6: Final answer
    x = 38,233.20

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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.