Home / 64,136.15-96,040.20-47,405.60

Finding the Fourth Proportional to 64,136.15, 96,040.20 and 47,405.60

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Solution

The fourth proportional to 64,136.15, 96,040.20 and 47,405.60 is: 70,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,136.15 : 96,040.20 = 47,405.60 : x
  2. Step 2: Convert to fraction form
    64,136.15/96,040.20 = 47,405.60/x
  3. Step 3: Cross multiply
    64,136.15x = 96,040.20 × 47,405.60
  4. Step 4: Simplify right side
    64,136.15x = 4,552,843,305.12
  5. Step 5: Solve for x
    x = 4,552,843,305.12/64,136.15
  6. Step 6: Final answer
    x = 70,987.16

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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.