Home / 66,319.20-99,496.40-28,863.20

Finding the Fourth Proportional to 66,319.20, 99,496.40 and 28,863.20

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Solution

The fourth proportional to 66,319.20, 99,496.40 and 28,863.20 is: 43,302.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,319.20 : 99,496.40 = 28,863.20 : x
  2. Step 2: Convert to fraction form
    66,319.20/99,496.40 = 28,863.20/x
  3. Step 3: Cross multiply
    66,319.20x = 99,496.40 × 28,863.20
  4. Step 4: Simplify right side
    66,319.20x = 2,871,784,492.48
  5. Step 5: Solve for x
    x = 2,871,784,492.48/66,319.20
  6. Step 6: Final answer
    x = 43,302.46

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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.