Home / 56,986.74-85,476.87-15,430.50

Finding the Fourth Proportional to 56,986.74, 85,476.87 and 15,430.50

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Solution

The fourth proportional to 56,986.74, 85,476.87 and 15,430.50 is: 23,144.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,986.74 : 85,476.87 = 15,430.50 : x
  2. Step 2: Convert to fraction form
    56,986.74/85,476.87 = 15,430.50/x
  3. Step 3: Cross multiply
    56,986.74x = 85,476.87 × 15,430.50
  4. Step 4: Simplify right side
    56,986.74x = 1,318,950,842.54
  5. Step 5: Solve for x
    x = 1,318,950,842.54/56,986.74
  6. Step 6: Final answer
    x = 23,144.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.