Home / 96,890.74-133,745.76-56,617.60

Finding the Fourth Proportional to 96,890.74, 133,745.76 and 56,617.60

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Solution

The fourth proportional to 96,890.74, 133,745.76 and 56,617.60 is: 78,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,890.74 : 133,745.76 = 56,617.60 : x
  2. Step 2: Convert to fraction form
    96,890.74/133,745.76 = 56,617.60/x
  3. Step 3: Cross multiply
    96,890.74x = 133,745.76 × 56,617.60
  4. Step 4: Simplify right side
    96,890.74x = 7,572,363,272.65
  5. Step 5: Solve for x
    x = 7,572,363,272.65/96,890.74
  6. Step 6: Final answer
    x = 78,153.63

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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.