Home / 64,515.20-96,772.80-52,705.40

Finding the Fourth Proportional to 64,515.20, 96,772.80 and 52,705.40

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Solution

The fourth proportional to 64,515.20, 96,772.80 and 52,705.40 is: 79,058.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,515.20 : 96,772.80 = 52,705.40 : x
  2. Step 2: Convert to fraction form
    64,515.20/96,772.80 = 52,705.40/x
  3. Step 3: Cross multiply
    64,515.20x = 96,772.80 × 52,705.40
  4. Step 4: Simplify right side
    64,515.20x = 5,100,449,133.12
  5. Step 5: Solve for x
    x = 5,100,449,133.12/64,515.20
  6. Step 6: Final answer
    x = 79,058.10

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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.