Home / 56,181.69-77,528.03-31,030.65

Finding the Fourth Proportional to 56,181.69, 77,528.03 and 31,030.65

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Solution

The fourth proportional to 56,181.69, 77,528.03 and 31,030.65 is: 42,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,181.69 : 77,528.03 = 31,030.65 : x
  2. Step 2: Convert to fraction form
    56,181.69/77,528.03 = 31,030.65/x
  3. Step 3: Cross multiply
    56,181.69x = 77,528.03 × 31,030.65
  4. Step 4: Simplify right side
    56,181.69x = 2,405,745,008.97
  5. Step 5: Solve for x
    x = 2,405,745,008.97/56,181.69
  6. Step 6: Final answer
    x = 42,820.80

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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.