Home / 78,136.64-117,151.64-37,588.76

Finding the Fourth Proportional to 78,136.64, 117,151.64 and 37,588.76

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Solution

The fourth proportional to 78,136.64, 117,151.64 and 37,588.76 is: 56,357.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,136.64 : 117,151.64 = 37,588.76 : x
  2. Step 2: Convert to fraction form
    78,136.64/117,151.64 = 37,588.76/x
  3. Step 3: Cross multiply
    78,136.64x = 117,151.64 × 37,588.76
  4. Step 4: Simplify right side
    78,136.64x = 4,403,584,879.57
  5. Step 5: Solve for x
    x = 4,403,584,879.57/78,136.64
  6. Step 6: Final answer
    x = 56,357.49

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1.5x scale

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.