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Finding the Fourth Proportional to 64,009.26, 88,348.59 and 38,879.82

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Solution

The fourth proportional to 64,009.26, 88,348.59 and 38,879.82 is: 53,663.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,009.26 : 88,348.59 = 38,879.82 : x
  2. Step 2: Convert to fraction form
    64,009.26/88,348.59 = 38,879.82/x
  3. Step 3: Cross multiply
    64,009.26x = 88,348.59 × 38,879.82
  4. Step 4: Simplify right side
    64,009.26x = 3,434,977,276.45
  5. Step 5: Solve for x
    x = 3,434,977,276.45/64,009.26
  6. Step 6: Final answer
    x = 53,663.76

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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.