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Finding the Fourth Proportional to 64,008.76, 88,347.90 and 38,879.32

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Solution

The fourth proportional to 64,008.76, 88,347.90 and 38,879.32 is: 53,663.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,008.76 : 88,347.90 = 38,879.32 : x
  2. Step 2: Convert to fraction form
    64,008.76/88,347.90 = 38,879.32/x
  3. Step 3: Cross multiply
    64,008.76x = 88,347.90 × 38,879.32
  4. Step 4: Simplify right side
    64,008.76x = 3,434,906,275.43
  5. Step 5: Solve for x
    x = 3,434,906,275.43/64,008.76
  6. Step 6: Final answer
    x = 53,663.07

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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.