Home / 64,878.18-89,546.22-42,177.66

Finding the Fourth Proportional to 64,878.18, 89,546.22 and 42,177.66

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Solution

The fourth proportional to 64,878.18, 89,546.22 and 42,177.66 is: 58,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,878.18 : 89,546.22 = 42,177.66 : x
  2. Step 2: Convert to fraction form
    64,878.18/89,546.22 = 42,177.66/x
  3. Step 3: Cross multiply
    64,878.18x = 89,546.22 × 42,177.66
  4. Step 4: Simplify right side
    64,878.18x = 3,776,850,021.45
  5. Step 5: Solve for x
    x = 3,776,850,021.45/64,878.18
  6. Step 6: Final answer
    x = 58,214.49

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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.