Home / 57,119.81-78,823.21-31,625.67

Finding the Fourth Proportional to 57,119.81, 78,823.21 and 31,625.67

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Solution

The fourth proportional to 57,119.81, 78,823.21 and 31,625.67 is: 43,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,119.81 : 78,823.21 = 31,625.67 : x
  2. Step 2: Convert to fraction form
    57,119.81/78,823.21 = 31,625.67/x
  3. Step 3: Cross multiply
    57,119.81x = 78,823.21 × 31,625.67
  4. Step 4: Simplify right side
    57,119.81x = 2,492,836,827.80
  5. Step 5: Solve for x
    x = 2,492,836,827.80/57,119.81
  6. Step 6: Final answer
    x = 43,642.25

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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.