Home / 64,109.61-88,470.77-35,431.20

Finding the Fourth Proportional to 64,109.61, 88,470.77 and 35,431.20

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Solution

The fourth proportional to 64,109.61, 88,470.77 and 35,431.20 is: 48,894.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,109.61 : 88,470.77 = 35,431.20 : x
  2. Step 2: Convert to fraction form
    64,109.61/88,470.77 = 35,431.20/x
  3. Step 3: Cross multiply
    64,109.61x = 88,470.77 × 35,431.20
  4. Step 4: Simplify right side
    64,109.61x = 3,134,625,368.87
  5. Step 5: Solve for x
    x = 3,134,625,368.87/64,109.61
  6. Step 6: Final answer
    x = 48,894.78

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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.