Home / 57,007.71-78,671.14-31,513.67

Finding the Fourth Proportional to 57,007.71, 78,671.14 and 31,513.67

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Solution

The fourth proportional to 57,007.71, 78,671.14 and 31,513.67 is: 43,489.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,007.71 : 78,671.14 = 31,513.67 : x
  2. Step 2: Convert to fraction form
    57,007.71/78,671.14 = 31,513.67/x
  3. Step 3: Cross multiply
    57,007.71x = 78,671.14 × 31,513.67
  4. Step 4: Simplify right side
    57,007.71x = 2,479,216,167.36
  5. Step 5: Solve for x
    x = 2,479,216,167.36/57,007.71
  6. Step 6: Final answer
    x = 43,489.14

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1.5x scale

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.