Home / 58,986.61-81,419.31-40,134.67

Finding the Fourth Proportional to 58,986.61, 81,419.31 and 40,134.67

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Solution

The fourth proportional to 58,986.61, 81,419.31 and 40,134.67 is: 55,397.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,986.61 : 81,419.31 = 40,134.67 : x
  2. Step 2: Convert to fraction form
    58,986.61/81,419.31 = 40,134.67/x
  3. Step 3: Cross multiply
    58,986.61x = 81,419.31 × 40,134.67
  4. Step 4: Simplify right side
    58,986.61x = 3,267,736,530.71
  5. Step 5: Solve for x
    x = 3,267,736,530.71/58,986.61
  6. Step 6: Final answer
    x = 55,397.94

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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.