Home / 71,187.34-98,240.58-39,358.29

Finding the Fourth Proportional to 71,187.34, 98,240.58 and 39,358.29

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Solution

The fourth proportional to 71,187.34, 98,240.58 and 39,358.29 is: 54,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,187.34 : 98,240.58 = 39,358.29 : x
  2. Step 2: Convert to fraction form
    71,187.34/98,240.58 = 39,358.29/x
  3. Step 3: Cross multiply
    71,187.34x = 98,240.58 × 39,358.29
  4. Step 4: Simplify right side
    71,187.34x = 3,866,581,237.41
  5. Step 5: Solve for x
    x = 3,866,581,237.41/71,187.34
  6. Step 6: Final answer
    x = 54,315.57

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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.