Home / 63,878.47-88,057.77-40,905.86

Finding the Fourth Proportional to 63,878.47, 88,057.77 and 40,905.86

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Solution

The fourth proportional to 63,878.47, 88,057.77 and 40,905.86 is: 56,389.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,878.47 : 88,057.77 = 40,905.86 : x
  2. Step 2: Convert to fraction form
    63,878.47/88,057.77 = 40,905.86/x
  3. Step 3: Cross multiply
    63,878.47x = 88,057.77 × 40,905.86
  4. Step 4: Simplify right side
    63,878.47x = 3,602,078,811.53
  5. Step 5: Solve for x
    x = 3,602,078,811.53/63,878.47
  6. Step 6: Final answer
    x = 56,389.56

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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.