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Finding the Fourth Proportional to 64,408.40, 88,885.56 and 36,114.80

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Solution

The fourth proportional to 64,408.40, 88,885.56 and 36,114.80 is: 49,839.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,408.40 : 88,885.56 = 36,114.80 : x
  2. Step 2: Convert to fraction form
    64,408.40/88,885.56 = 36,114.80/x
  3. Step 3: Cross multiply
    64,408.40x = 88,885.56 × 36,114.80
  4. Step 4: Simplify right side
    64,408.40x = 3,210,084,222.29
  5. Step 5: Solve for x
    x = 3,210,084,222.29/64,408.40
  6. Step 6: Final answer
    x = 49,839.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.