Home / 55,543.72-76,648.44-31,678.08

Finding the Fourth Proportional to 55,543.72, 76,648.44 and 31,678.08

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Solution

The fourth proportional to 55,543.72, 76,648.44 and 31,678.08 is: 43,714.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,543.72 : 76,648.44 = 31,678.08 : x
  2. Step 2: Convert to fraction form
    55,543.72/76,648.44 = 31,678.08/x
  3. Step 3: Cross multiply
    55,543.72x = 76,648.44 × 31,678.08
  4. Step 4: Simplify right side
    55,543.72x = 2,428,075,388.94
  5. Step 5: Solve for x
    x = 2,428,075,388.94/55,543.72
  6. Step 6: Final answer
    x = 43,714.67

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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.