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Finding the Fourth Proportional to 64,780.63, 97,170.96 and 25,310.07

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Solution

The fourth proportional to 64,780.63, 97,170.96 and 25,310.07 is: 37,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,780.63 : 97,170.96 = 25,310.07 : x
  2. Step 2: Convert to fraction form
    64,780.63/97,170.96 = 25,310.07/x
  3. Step 3: Cross multiply
    64,780.63x = 97,170.96 × 25,310.07
  4. Step 4: Simplify right side
    64,780.63x = 2,459,403,799.57
  5. Step 5: Solve for x
    x = 2,459,403,799.57/64,780.63
  6. Step 6: Final answer
    x = 37,965.11

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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.