Home / 64,385.44-88,656.48-57,110.80

Finding the Fourth Proportional to 64,385.44, 88,656.48 and 57,110.80

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Solution

The fourth proportional to 64,385.44, 88,656.48 and 57,110.80 is: 78,639.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,385.44 : 88,656.48 = 57,110.80 : x
  2. Step 2: Convert to fraction form
    64,385.44/88,656.48 = 57,110.80/x
  3. Step 3: Cross multiply
    64,385.44x = 88,656.48 × 57,110.80
  4. Step 4: Simplify right side
    64,385.44x = 5,063,242,497.98
  5. Step 5: Solve for x
    x = 5,063,242,497.98/64,385.44
  6. Step 6: Final answer
    x = 78,639.56

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1.5x scale

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.