Home / 55,213.50-76,189.83-31,341.18

Finding the Fourth Proportional to 55,213.50, 76,189.83 and 31,341.18

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Solution

The fourth proportional to 55,213.50, 76,189.83 and 31,341.18 is: 43,248.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,213.50 : 76,189.83 = 31,341.18 : x
  2. Step 2: Convert to fraction form
    55,213.50/76,189.83 = 31,341.18/x
  3. Step 3: Cross multiply
    55,213.50x = 76,189.83 × 31,341.18
  4. Step 4: Simplify right side
    55,213.50x = 2,387,879,176.20
  5. Step 5: Solve for x
    x = 2,387,879,176.20/55,213.50
  6. Step 6: Final answer
    x = 43,248.10

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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.