Home / 55,477.10-76,558.86-31,603.40

Finding the Fourth Proportional to 55,477.10, 76,558.86 and 31,603.40

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Solution

The fourth proportional to 55,477.10, 76,558.86 and 31,603.40 is: 43,612.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,477.10 : 76,558.86 = 31,603.40 : x
  2. Step 2: Convert to fraction form
    55,477.10/76,558.86 = 31,603.40/x
  3. Step 3: Cross multiply
    55,477.10x = 76,558.86 × 31,603.40
  4. Step 4: Simplify right side
    55,477.10x = 2,419,520,276.12
  5. Step 5: Solve for x
    x = 2,419,520,276.12/55,477.10
  6. Step 6: Final answer
    x = 43,612.96

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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.