Home / 81,989.10-113,155.65-46,186.02

Finding the Fourth Proportional to 81,989.10, 113,155.65 and 46,186.02

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Solution

The fourth proportional to 81,989.10, 113,155.65 and 46,186.02 is: 63,742.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,989.10 : 113,155.65 = 46,186.02 : x
  2. Step 2: Convert to fraction form
    81,989.10/113,155.65 = 46,186.02/x
  3. Step 3: Cross multiply
    81,989.10x = 113,155.65 × 46,186.02
  4. Step 4: Simplify right side
    81,989.10x = 5,226,209,114.01
  5. Step 5: Solve for x
    x = 5,226,209,114.01/81,989.10
  6. Step 6: Final answer
    x = 63,742.73

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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.