Home / 55,379.90-76,423.28-31,506.06

Finding the Fourth Proportional to 55,379.90, 76,423.28 and 31,506.06

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Solution

The fourth proportional to 55,379.90, 76,423.28 and 31,506.06 is: 43,477.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,379.90 : 76,423.28 = 31,506.06 : x
  2. Step 2: Convert to fraction form
    55,379.90/76,423.28 = 31,506.06/x
  3. Step 3: Cross multiply
    55,379.90x = 76,423.28 × 31,506.06
  4. Step 4: Simplify right side
    55,379.90x = 2,407,796,445.08
  5. Step 5: Solve for x
    x = 2,407,796,445.08/55,379.90
  6. Step 6: Final answer
    x = 43,477.81

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1.5x scale

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.