Home / 71,683.14-98,925.26-39,420.20

Finding the Fourth Proportional to 71,683.14, 98,925.26 and 39,420.20

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Solution

The fourth proportional to 71,683.14, 98,925.26 and 39,420.20 is: 54,401.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,683.14 : 98,925.26 = 39,420.20 : x
  2. Step 2: Convert to fraction form
    71,683.14/98,925.26 = 39,420.20/x
  3. Step 3: Cross multiply
    71,683.14x = 98,925.26 × 39,420.20
  4. Step 4: Simplify right side
    71,683.14x = 3,899,652,842.52
  5. Step 5: Solve for x
    x = 3,899,652,842.52/71,683.14
  6. Step 6: Final answer
    x = 54,401.26

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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.