Home / 42,977.16-64,171.62-38,505.96

Finding the Fourth Proportional to 42,977.16, 64,171.62 and 38,505.96

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Solution

The fourth proportional to 42,977.16, 64,171.62 and 38,505.96 is: 57,495.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,977.16 : 64,171.62 = 38,505.96 : x
  2. Step 2: Convert to fraction form
    42,977.16/64,171.62 = 38,505.96/x
  3. Step 3: Cross multiply
    42,977.16x = 64,171.62 × 38,505.96
  4. Step 4: Simplify right side
    42,977.16x = 2,470,989,832.86
  5. Step 5: Solve for x
    x = 2,470,989,832.86/42,977.16
  6. Step 6: Final answer
    x = 57,495.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.