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Finding the Fourth Proportional to 64,290.90, 88,754.76 and 40,099.44

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Solution

The fourth proportional to 64,290.90, 88,754.76 and 40,099.44 is: 55,358.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,290.90 : 88,754.76 = 40,099.44 : x
  2. Step 2: Convert to fraction form
    64,290.90/88,754.76 = 40,099.44/x
  3. Step 3: Cross multiply
    64,290.90x = 88,754.76 × 40,099.44
  4. Step 4: Simplify right side
    64,290.90x = 3,559,016,173.33
  5. Step 5: Solve for x
    x = 3,559,016,173.33/64,290.90
  6. Step 6: Final answer
    x = 55,358.01

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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.